Either way you totally win.
If you have 4 remotes, go with Kart. The online is 12 players and really awesome, but if you're not online, 4 player local multiplayer is still loads of fun.
Galaxy is quite possibly the best single-player gaming experience of this generation. It's also got a great "girlfriend mode" where somebody helps you by stunning enemies, collecting star bits, and shooting them for you while you focus on all the manly flips and jumps.












