Rainbow Road is my favourite. I've actually done it so many times, that I know the track inside out. When I play on Wi-Fi I always vote for it, because I know the other players detest it because they fall off the edges.
****in' love this game. I'd add my friend code, but I'm in the midst of a move, and it's at the other house.
Favorite tracks from each cup: Mushroom Gorge, Coconut Mall, Koopa Cape, Moonview Highway, Peach Beach, Delfino Square, Bowser's Castle 3, and DK Mountain.
I'm home from Uni for the Christmas holidays, and because I live in quite a remote village I'm bored shitless, so I spend a lot of my time getting high and destroying my mate on Mario Kart.