I'm torn and of two mind sets. I like some tracks because they encourage speed and air and are just plain fun to flick on. I like other tracks because they encourage wider choice of strategy and are better for competing.
I enjoy firing up an 8-player local game and just flicking away to see all the cool shots I can make. I also like playing 4-player online games where I can use strategy to get the better of my opponents and not just always go for the most spectacular flicks.
Perhaps two polls? Which tracks are the most fun to play on? Which tracks are the most competitive?