For me, it's unquestionably Mount Wario.
The snowy setting, the fact that it's all one giant course, that final adrenaline rush of a descent down the slopes toward the finish line -- I love it so much.
But there are quite a few other tracks in Mario Kart 8 worthy of "favorite" status. What's yours?
Mount Wario might be my number-one, but figuring the runners-up would be much more of a challenge. So many good choices! As for who I play as, it's gotta be Larry. Always.