Peter Spidey Parker

I always liked to perceive him being chronologically older than the Mane 6. Because even though he is biologically like 3 to 5 years younger than Twilight, who knows how long has it been since his mother had his egg. Dragons hatching much later than their supposed birth date could be possible. Also he is only baby to long living Dragons but actually an adult to ponies.

From here I find AJ being with a random stallion that appeared during her episodes feels awfully weird and was probably created by fans that desperately wanted to ship her with someone. Twilight and Flash can speak for itself. It was nearly canon but didn't become a reality (dodged a bullet there), fairly detested by most fans but well loved too. I myself don't like this ship at all. Flash was an unnecessary filler character with the main purpose of being the supposed love interest and a strangely kind goody two shoes that only had a major yet short-timed role in the not-so-liked movie. And shipping these two left, right and center just because the writers threw a pube-hair hint of twilight's temporary yet unnecessary attraction towards him hardly qualifies as being "cute", "meant to be", "perfect" couple base material. Sure, you can love, adore and even pray to this ship. It's your opinion and interest. Likewise, I don't hate or feel resent towards Flash because of his waifu-stealing role, rather he seemed to be a nice guy. To summarize my whole opinion on this ship in few words: Unnecessary, Created to preserve the plot, Randomly came out of nowhere, Awkward and Unfitting, and was probably created to p*ss off the bronies xD. Dash and Soarin is like said, PASSABLE. Though it is probably not a good ship because it shares the same nature as AJxCaramel, and not to mention Soarin's possible major seniority over Rainbow Dash. FlutterxBigMac would be a possible ship if the characters interacted more, had more intersecting stories and similarities but otherwise this ship is weird and random. RarityxSpike is possibly my favorite ship in the series but don't think I am biased because of it. Though fans see it weird (heck! they see every ship that includes Spike weird!) it certainly looks like it because how Spike looks like a toddler because of his current (or as of now, past) stage of Dragon life. Small, chibi and cute. Doesn't sound like a shipping material right? But seeing from Rarity and Spike's close relationship through out the series, I always viewed past Spike's child like appearance and more on his character. Though he acts like a child sometimes, he has also acted and lived like an adult on numerous occasions. Like being the voice of reason for Twilight and the Mane 5, being their equally loyal companion, handling big responsibilities and acting very mature when time calls etc. I also noticed fans associating him and his age more to the CMC than the Mane 5. This I must stress more facts and opinions upon. Firstly, Spike had nearly always been an equal status friend to the Mane 6 than a younger/inferior ally (though I can't deny that he is biologically younger than them). He also acts more mature and responsible when it comes to the CMC and we know that Spike was hatched when the 6 were mere fillies (likely foals growing into fillies given how AJ mentioned that she was even smaller than the CMC during that time) and we also saw a 5 year old Sweetie Belle during a flashback dream. And in that dream Rarity was practically a full grown Mare. In general, viewing Spike as too young to be involved in shipping is absurd. And Sparity is a very wholesome and endearing ship no matter who says it's weird or inappropriate. Also the "different species thing won't workout" thing is irrelevant. Yes. The crossover ships are garbage and cringe.

He is considered a baby for a "Dragon" not a "Pony". For all we know, he could be well above adult in pony years. Other facts include: Dragons mature slower than ponies (besides greed), completely different species, Spike has done some stuff that shouldn't be allowed for kids (Not in a dirty way). He is min 4 to max 6 years younger than the mane 6 IMO.

If I am not mistaken, Dragons are in fact, the most powerful creatures in mythology. But I always felt that MLP franchise nerfed the dragons and buffed the ponies. FYI, actual unicorns in mythology don't cast spells like a wizard with their magic. But actual dragons in mythology all over the world literally shape their surroundings and destroy anything if they wish to. Both dragons and unicorns are magical creatures with one's magic relating to goodness and healing while the other destruction, power and hunger. Likewise, MLP did have some lines pointing to the power of dragons. Such as when Applebloom said "You can't out fight a dragon" or when Garble threatened to burn down Equestria if he became the Dragon lord. Notable yet well known facts about dragons is they have nigh-invulnerability to magic with scales that can't be pierced, and of course, fire breath which is more powerful that the strongest spells that can wipe out cities in a flash. So yeah, If Spike was ever fully grown (which is not gonna happen till like a century later due to Dragons' longevity and slow maturity) he'll be more powerful than an alicorn I daresay.