I only have MKDS and MKWii, but I still consider those to be the best. MK64 is close behind, with a not far away MKDD.

My favorite is Mario Kart DS, as it has in my opinion the best feel, the most well-implemented powerslide mechanic, the most fun gameplay, not to mention the fact that it's the only one to have missions, or to allow you to create your own emblem. I also love its selection of tracks, with such gems as Tick-Tock Clock, Airship Fortress, and Waluigi Pinball. It also has one of my favorite versions of Rainbow Road.

Super Mario Kart, the amount of time i used to play that game as a child was ridiculous. Now i tend to go through some VG music (or OCremixes) from time to time just to relive the feel of those games but also play them as well, maybe not as often though.

I would say that my favorite is DD just because it introduced some new interesting concept to the series which i was quite fond of, however i haven't followed the series that much after that, so my experience with the latest ones are a bit fuzzy... x)

--off topic---

SNES overall played one of the bigger roles in my childhood, especially games like Yoshi's island and SMB3, such nostalgia... <3

Let me just start by saying, as an uber Nintendo fan as well as being an uber racing fan, the Mario Kart series is the perfect combo. Not only is one of my favorite Mario spinoff franchises as well as favorite racing franchises, I find it to be one of the best franchises overall.

I cannot express my passion for it, it's only natural I own all of them. I only wish I had to motivation to put every single loving aspect of them into lengthy words at the moment.

(What a coindence, the franchise turned 20 just a couple weeks ago!)

Anyways, picking my favorite is just too hard, so I will just go along in chronological order.

Super Mario Kart- Ah, the classic. It all started with the blurry soon-to-be failed concept of a 2-player F-Zero game, which was very popular at release but was lacking multiplayer functions. So, after fooling around with a graphic that looked like a "generic guy in overalls", they decided to transform that into a Mario-themed go-kart racing game. And boy, the revolution it made. It worked wonders with the SNES' trademark Mode 7 technology. With tons of power ups, quirks, tracks, characters, this is easily one of the greatest Mario spin-off games of all time. It's easy, great fun.

Mario Kart 64- This is one of my favorites. The one that probably truly peaqued the success of the series. Actual 3D environments, 2D character sprites (most likely because they didn't want to test the polygon amount, or they were just lazy. Either way, it doesn't bother me at all.) All the tracks are vastly unique, added a crazy 4-player multiplayer mode, altogether one of the best of the N64 classics. An absolute must-have in every 64 collector's stash.

Mario Kart Super Circuit- Back to the basics. Limited technology by the GBA compared to the previous Mario Kart console, the game feels a little like both its predecessors. 2D sprites like MK64, gameplay handling like SMK, and a slightly better quality sound chip to the SNES, so it sounded a bit better, too. Also, the voice clips are from MK64 (some from the Japanese version), thanks to the system's capabilities. Anyways, altogether, this is the one that's meant the most to my childhood, so it ranks pretty high for me.

Mario Kart Double Dash!!- Possibly the most unique, and definitely one of the best. Two characters instead of one. Surely it wouldn't be an idea that would stick with the series forever, but it was good to bring it out. It just makes it a fun edition to the gameplay. Though, if there's one thing I have to say, the Rainbow Road in this one is mercilessly evil. ;_;

Mario Kart DS- Another one I grew up playing. Again, the graphics and eveything else are downgraded from the previous installment, but that does not mean it is any less fun. Introducing retro tracks, mission mode, custom emblems, dual-screen action, an epic soundtrack (though all of them do, this one stands out a little IMO), and finally carrying on the general gameplay engine and feel from DD!! to be used throughout the rest of the installments to the present, I'd say this is definitely another one of the best MK games. Plus, Wireless Multiplayer. Epic fun.

Mario Kart Wii- Ah, I remember being hyped for this one. The series finally returns to the home console once again to dominate. Although the Wii has nearly the same amount of power and potential as the GC, it doesn't look nor play much different. Stunts and bikes I think we're the only two primary new additions. The karts and bikes were interesting, and the roster was jumbo-sized. I'd say it's pretty high up there for me.

Mario Kart 7- The last one currently to be released is definitely not the least. Finally for the 3D console, this game delivers yet another fresh dose of Mario Kart action, nothing less. This one feels limited, though, no VS. mode, no mission mode, no bikes (though they were probably never meant to be), and some music is either borrowed or remixed from MKW. Which isn't bad, it just seems less productive to me. The new first person cam is welcomed, and really cool. I hope they make a huge change in the possible coming installment for the Wii U.

And...I didn't need to write all that, but I did. I guess I just really like the series.

You got it man.. you got it.

Mario Kart 64 I used to play with my friends and sister all the time growing up. Later on, I got hooked on Mario Kart Wii, playing it a ton with my girlfriend. We had many good times playing these games. But darn those blue shells!