One of my biggest peeves in reviewing is giving something a calculated score, because it's very difficult if not impossible to reduce the quality to such a mark. Plus, whenever many people see a score, they tend to not read the review at all and rely on the score/grade itself as proof for purchase.

Nonetheless, if I were to grade the following based on the following items below, they would be the followings below the first rule. The grades are respective and separated to the following categories:

1. Season 1
2. Season 2
3. Season 3
4. Season 4
5. Season 5
6. Season 6
7. Season 7
8. Season 8
9. Season 9
10. MLP: The Movie & Specials
11. Equestria Girls series, RR animated shorts, specials, and IDW comic/annual
12. Main Comic Series*
13. Micro-Series
14. Friends Forever

If you want to see my order of every FIM episode from best to worst (with grades), click here.

Be warned: There are no reasons given for any of the grades, and they're all subject to change. Let's begin!

Season 1:

1. Friendship Is Magic: C
2. The Ticket Master: C-
3. Applebuck Season: B-
4. Griffon the Brush Off: D+
5. Boast Busters: F
6. Dragonshy: B-
7. Look Before You Sleep: B
8. Bridle Gossip: F-
9. Swarm of the Century: B-
10. Winter Wrap Up: A-
11. Call of the Cutie: B+
12. Fall Weather Friends: B
13. Suited for Success: A
14. Feeling Pinkie Keen: D-
15. Sonic Rainboom: B
16. Stare Master: C-
17. The Show Stoppers: F
18. A Dog and Pony Show: C
19. Green Isn't Your Color: B
20. Over a Barrel: D+
21. A Bird in the Hoof: D
22. The Cutie Mark Chronicles: A-
23. Owl's Well that Ends Well: F
24. Party of One: A+
25. The Best Night Ever: A+

———

Season 2:

1. The Return of Harmony: A-
2. Lesson Zero: A
3. Luna Eclipsed: B+
4. Sisterhooves Social: A+
5. The Cutie Pox: C
6. May the Best Pet Win!: F
7. The Mysterious Mare Do Well: F
8. Sweet and Elite: B-
9. Secret of My Excess: B
10. Hearth's Warming Eve: B
11. Family Appreciation Day: B
12. Baby Cakes: C+
13. The Last Roundup: B
    The Last Roundup (edited): F
14. The Super Speedy Cider Squeezy 6000: C-
15. Read It and Weep: B-
16. Hearts and Hooves Day: D
17. A Friend in Deed: B
18. Putting Your Hoof Down: F
19. It's About Time: B-
20. Dragon Quest: F-
21. Hurricane Fluttershy: A
22. Ponyville Confidential: D-
23. MMMystery on the Friendship Express: D-
24. A Canterlot Wedding: C-

———

Season 3:

1. The Crystal Empire: F+
2. Too Many Pinkie Pies: C+
3. One Bad Apple: F-
4. Magic Duel: B+
5. Sleepless in Ponyville: A
6. Wonderbolts Academy: A-
7. Apple Family Reunion: B
8. Spike at Your Service: D-
9. Keep Calm and Flutter On: D+
10. Just for Sidekicks: D
11. Games Ponies Play: F+
12. Magical Mystery Cure: C-

———

Season 4:

1. Princess Twilight Sparkle: C-
2. Castle Mane-ia: B-
3. Daring Don't: D
4. Flight to the Finish: A
5. Power Ponies: C
6. Bats!: F+
7. Rarity Takes Manehattan: B+
8. Pinkie Apple Pie: B+
9. Rainbow Falls: F-
10. Three's a Crowd: C+
11. Pinkie Pride: A
12. Simple Ways: C-
13. Filli Vanilli: D
14. Twilight Time: B
15. It Ain't Easy Being Breezies: D-
16. Somepony to Watch Over Me: F
17. Maud Pie: C+
18. For Whom the Sweetie Belle Toils: A-
19. Leap of Faith: C
20. Testing Testing 1, 2, 3: A
21. Trade Ya!: F
22. Inspiration Manifestation: B
23. Equestria Games: D+
24. Twilight's Kingdom: B-

———

Season 5:

1. The Cutie Map: A+
2. Castle Sweet Castle: A-
3. Bloom & Gloom: A-
4. Tanks for the Memories: D+
5. Appleoosa's Most Wanted: F
6. Make Friends but Keep Discord: C+
7. The Lost Treasure of Griffonstone: C
8. Slice of Life: A
9. Princess Spike: F
10. Party Pooped: C-
11. Amending Fences: A+
12. Do Princesses Dream of Magic Sheep?: D+
13. Canterlot Boutique: B-
14. Rarity Investigates!: B
15. Made in Manehattan: C+
16. Brotherhooves Social: D+
17. Crusaders of the Lost Mark: A+
18. The One Where Pinkie Knows: C
19. Hearthbreakers: B-
20. Scare Master: B+
21. What About Discord: F
22. The Hooffields and McColts: D+
23. The Mane Attraction: A-
24. The Cutie Re-Mark: A

———

Season 6:

1. The Crystalling: B
2. The Gift of Maud Pie: C+
3. On Your Marks: B+
4. Gauntlet of Fire: A-
5. No Second Prances: F
6. Newbie Dash: F-
7. A Hearth's Warming Tail: A
8. The Saddle Row Review: A
9. Applejack's "Day" Off: C
10. Flutter Brutter: F+
11. Spice Up Your Life: C-
12. Stranger Than Fan Fiction: B-
13. The Cart Before the Ponies: F
14. 28 Pranks Later: F-
15. The Times They Are a Changeling: A
16. Dungeons & Discords: B
17. Buckball Season: C-
18. The Fault in Our Cutie Marks: A-
19. Viva Las Pegasus: B+
20. Every Little Thing She Does: D
21. P.P.O.V. (Pony Point of View): F
22. Where the Apple Lies: B-
23. Top Bolt: B
24. To Where and Back Again: F

———

Season 7:

1. Celestial Advice: B-
2. All Bottled Up: A-
3. A Flurry of Emotions: B+
4. Rock Solid Friendship: C+
5. Fluttershy Leans In: C
6. Forever Filly: C+
7. Parental Glideance: A+
8. Hard to Say Anything: F
9. Honest Apple: F
10. A Royal Problem: C-
11. Not Asking for Trouble: B-
12. Discordant Harmony: A-
13. The Perfect Pear: A+
14. Fame and Misfortune: F-
15. Triple Threat: B-
16. Campfire Tales: C+
17. To Change a Changeling: B+
18. Daring Done: C+
19. It Isn't the Mane Thing About You: A-
20. A Health of Information: B
21. Marks and Recreation: A
22. Once Upon a Zeppelin: A-
23. Secrets and Pies: D
24. Uncommon Bond: A-
25. Shadow Play: A+

———

Season 8:

1. School Daze: B-
2. The Maud Couple: B
3. Fake It 'Til You Make It: F
4. Grannies Gone Wild: A
5. Surf and/or Turf: A
6. Horse Play: A-
7. The Parent Map: B+
8. Non-Compete Clause: D-
9. The Break Up Break Down: A+
10. Molt Down: A-
11. Marks for Effort: B+
12. The Mean 6: A
13. A Matter of Principals: C-
14. The Hearth's Warming Club: A
15. Friendship University: B+
16. The End in Friend: B
17. Yakity-Sax: D
18. On the Road to Friendship: A
19. The Washouts: A
20. A Rockhoof and a Hard Place: A+
21. What Lies Beneath: A-
22. Sounds of Silence: A-
23. Father Knows Beast: B-
24. School Raze: B

———

Season 9:

1. The Beginning of the End: B+
2. Uprooted: B+
3. Sparkle's Seven: A+
4. The Point of No Return: A-
5. Common Ground: A
6. She's All Yak: A-
7. Frenemies: A
8. Sweet and Smoky: B
9. Going to Seed: B-
10. Student Counsel: B+
11. The Last Crusade: A+
12. Between Dark and Dawn: A
13. The Last Laugh: A-
14. 2, 4, 6, Greaaat: D
15. A Trivial Pursuit: B-
16. The Summer Sun Setback: A
17. She Talks to Angel: B+
18. Dragon Dropped: A
19. A Horse Shoe-In: B+
20. Daring Doubt: B
21. Growing Up is Hard to Do: C-
22. The Big Mac Question: A+
23. The Ending of the End: C
24. The Last Problem: A

———

Specials/Movies:

1. My Little Pony: The Movie: C
2. Best Gift Ever: C+
3. Rainbow Roadtrip: B

Equestria Girls:

1. My Little Pony: Equestria Girls: F-
2. The Fall of Sunset Shimmer: A-
3. MLP Annual #1: C-
4. My Little Pony: Equestria Girls — Rainbow Rocks: D
5. Equestria Girls Holiday Special: F-
6. My Little Pony: Equestria Girls — Friendship Games: F+
7. My Little Pony: Equestria Girls — Legend of Everfree: C-

1. Dance Magic: C
2. Movie Magic: C-
3. Mirror Magic: D-
4. Forgotten Friendship: C

———

Rainbow Rocks Shorts:

1. Music to My Ears: A
2. Guitar Centered: C
3. Hamstocalypse Now: C
4. Pinkie on the One: D+
5. Player Piano: C-
6. A Case for the Bass: B-
7. Shake Your Tail!: C-
8. Perfect Day for Fun: D

1. Life Is a Runway: A
2. My Past Is Not Today: A
3. Friendship Through the Ages: A

Main Comic Series:

(Individual issues and overall arc are graded separately.)

1. The Return of Queen Chrysalis: B
   a. Part 1: B+
   b. Part 2: C-
   c. Part 3: B
   d. Part 4: B
2. Nightmare Rarity: F
   a. Part 1: D-
   b. Part 2: D
   c. Part 3: D-
   d. Part 4: F
3. Zen and the Art of Gazebo Repair: B+
   a. Part 1: B+
   b. Part 2: A-
4. Neigh Anything: B
   a. Part 1: B-
   b. Part 2: B
5. My Little Pirate: Friendship Ahoy: D
   a. Part 1: C
   b. Part 2: D+
6. The Bookworm: C-
   a. Part 1: D
   b. Part 2: C
7. Reflections: F
   a. Part 1: D+
   b. Part 2: D-
   c. Part 3: F
   d. Part 4: F
8. Manehattan Mysteries: A-
   a. Part 1: A-
   b. Part 2: A-
9. The Good, the Bad, and the Ponies: F-
   a. Part 1: F-
   b. Part 2: F-
10. Siege of The Crystal Empire: F-
    a. Part 1: D
    b. Part 2: F
    c. Part 3: F-
    d. Part 4: F-

*The main comics have been so bad, until they clean up, I refuse to read them again.

———

Micro-Series:

1. Twilight Sparkle: F+
2. Rainbow Dash: F-
3. Rarity: B+
4. Fluttershy: F-
5. Pinkie Pie: A
6. Applejack: D+
7. Cutie Mark Crusaders: A-
8. Princess Celestia: B-
9. Spike: C-
10. Princess Luna: C

———

Friends Forever:

1. Pinkie Pie & Applejack: F
2. Cutie Mark Crusaders & Discord: B
3. Spike & Princess Celestia: C-
4. Twilight Sparkle & Shining Armor: B
5. Fluttershy & Zecora: A
6. Rainbow Dash & Trixie: C+
7. Pinkie Pie & Princess Luna: A-
8. Rarity & Applejack: D+
9. Rarity & Babs Seed: B
10. Rainbow Dash & Soarin': A

I wound up growing uninterested in reading Friends Forever, hence the short list.