Topic: What game should I get?

I'm really interested in getting The Legend of Zelda: Skyward Sword, Mariokart 7, and Super Mario 3D Land. I only have enough money to buy one.

I just need some opinions of people that might have made this decision before, or people who already have this game and wished they'd have gotten another. Note, that I do not have ANY games specifically made for the 3DS, which is why I'm kind of leaning toward one of the 3DS game right now, yet Skyward Sword is a game that I've been drooling over for such a long time, plus is looks like a freakin' awesme Zelda game. So please, if you could just guide me in some direction so that my decision making process will be a little easier on my brain. Thank you.

Super Mario 3D Land is definitely the shortest of the three. Mario Kart 7's online mode encourages a lot of replay time.

For cross-platform recommendations, please feel free to ask in the Universal Recommendations thread. Thank you! :3