DK Mountain (DD) is one of my personal favorite tracks because of its atmosphere and execution; it has the Barrel Cannon. I Snow Mountain (Wii) (I know it's basically the same concept/thing, but the GCN one has a bit more sentimental value-I give it partial credit for...a certain long-lasting feeling I have that I can't control...oh, and you can't beat giant boulders I somehow have always been able to dodge as obstacles), Parkway (64), one of the all-time classics, and the one in Mario Kart 7 are the great too, along with Pass (DS) being one of my personal best.