During the GCN days I took a little break from gaming and focused on a few games. MKDD i only played once I had a Wii and could load GCN games in it lol. So not all that strange tbh.

Mario Kart 8 is probably objectively the best one, but I’ll still vote for 64. It’s just one of the most fun times I’ve ever had with a video game. It also really meant something to me. You can say that’s nostalgia, which it very well could be, but it’s a powerful thing.

I've only played 8 and Double dash, but 8 is my favorite.

It's a secret ballot. I did vote for Super Mario Kart though. Enjoyed it more than Mario Kart 64, which was the last kart racer I spent a decent amount of time with. Tried Diddy Kong Racing and it didn't do it for me at all. Spent an hour or two with the Burger King kart game, PocketBike Racer on XB360. Was basically done with the kart sub-genre over 2 decades ago. Truly loved Super Mario Kart though. Easy pick. As for the future, idunno.

Mario Kart 8 and MK64 are my most favorites.

What I want from future Mario Kart game is to be expand on Mario Kart 8,
so more characters, cups and tracks from other Nintendo franchises, make it essentially Nintendo Kart instead of Mario Kart.
So imagine Zelda Cup, Animal Crossing Cup, F-Zero Cup, Splatoon Cup, Metroid Cup, Star Fox Cup, Pikmin Cup, Yoshi Cup, Donkey Kong Cup, Kyrby Cup, Luigis Cup and of course couple of standard Mario Kart Cups.

Mario Kart DS for me. So many other kids on my bus had DSes, and we'd race each other all the time. Not only that, but this game had a pretty good battle mode (including the option for balloon battle with stocks), the mission mode, and the beginnings of online capabilities. Granted, it was still pretty basic, but for a DS game at the time I'd say it was fine. The retro tracks were a blast as well. Seriously, this game pushed the series forward in some big ways, and still does some things better than the newer entries.

My only complaint is they phoned it in a bit more than usual with some of the easier tracks, particularly in the Mushroom and Flower cups.  I'm pretty sure everyone's made fun of Figure 8 Circuit and Yoshi Falls already.  Though I guess all the games are guilty of this to an extent, so I wouldn't say it ruins the game.  And even though this game dropped the ball with some of the beginner tracks, I'd say there are enough classic tracks here to more than make up for them, such as Waluigi Pinball, Airship Fortress, Tick Tock Clock, etc.

64 then 8 deluxe and there shouldn't be a 9 until next gen

Mario Kart 8 by a margin. It blew me away on release. Double dash and DS were also amazing. Tbh I doubt there will be an mk9 this gen so I would like to see a nintendo themed racer. Not an mk clone but in a similar vein with the cast and vehicles and themed worlds based on nintendos vast catalouge. F-zero, starfox, metroid, pokemon, animal crossing, pikmin, dk, luigis mansion, excite bike/truck/bots, splatoon, pokemon, xenoblade, earthbound, piolot wings, diddy kong racing, zelda, kirby etc.

Double Dash, is my most favorite.

Which Mario Kart is your favourite? Why is it your favourite?

 I think Mario Kart 8 Deluxe takes the crown for me. It simply has the most amount of content out of any Mario Kart game, has a good battle mode and runs very well on the Switch. My runner-ups are Mario Kart DS and 64. Mario Kart DS was amazing back in the day. It can't keep up with 8, but it has one thing still going for it: It would let you customise your single-player races more! You could choose how many races you wanted to do and I would often select 32 races and then play through the whole track selection. And Mario Kart 64 just has that weird charm. I don't know what it is but we even downloaded it on Wii U and had a blast. But of course it can't keep up with modern games.

What would you like to see in a future Mario Kart game? 

Whoa, that's hard. MK8 Deluxe just did so many things right. I'd generally like to see more options! Things like turning specific items / coins / etc. on or off and setting more detailed custom rules for multiplayer matches. A track / vehicle editor (if done right) would be great, although not necessary. And give us the Double Dash!! mode as an option - don't force us to play like this but maybe add it as a DLC mode for those who like it.

What improvements do you think are a MUST?

I think the new Mario Kart will have a hard time shining with the amount of content as there's just so much in MK8 Deluxe already. So I guess it will have to improve the graphics and atmosphere. But I'd really like a Small Ultimate approach: Give us ALL the retro tracks, multiple music tracks for each course to bring more variety and new gameplay modes. Also, more maps in battle mode (just bring back most of the old ones and things should be fine).

What do you think Nintendo will do in a future Mario Kart game?

I think it will keep the gameplay foundation they have established over the last few entries and that's a good thing. I doubt we'll see it on Switch, though. Instead it'll be an early title for the next Nintendo console - hopefully with a slew of new and retro content, like Smash Ultimate.