SNES: That one was insanely difficult! One of the best race tracks in videogame history imo.

Benga I remember when I first played the N64 one. I was quite appalled at how easy it was to play. I mean apart from one section it was literally impossible to fall off the course.

The nightmares I had with the SNES were not replayed in the N64 version that was for sure LOL

64 for the glitch on the big hill at the start, i would annoy my friends so much with that.

Still haven't played the Wii version but my vote goes to the SNES. On 150cc, leading the race from start to finish without once taking your finger off the gas. Challenging but oh so rewarding, i get a buzz just thinking of it.

Wii > GC >>>>>> N64

I haven't played any of the others.

How about Bowsers Castle?
I'd say GC >>> N64 > Wii > GBA(Wii version)

Or Mario Circuit/Raceway?
N64 >> Wii >> GC > SNES(Wii version)

Or Luigi Circuit?
Wii > GC >>>>>>> N64

I can't think of any others that have spanned

The Nintendo 64 version... I know the song is pretty much the same but it just sounds cheerier... As for the new Rainbow Road, it took a lot of getting used to but its now the course I prefer in MKW online.

Wait... Are people referring to the "glitch" that is the games most amazing shortcut?

the 64 version one

The N64 one, but I haven't played the Wii version yet.

I think I have to go classic with this and say the SNES but I also really liked the N64 version too.