Red Steel 2
I shied away from the original Red Steel largely due to reports that the swordplay controlled like ass. So controls were my top concern when I tried Red Steel 2, and - granted I haven't tried anything near the game's full repertoire of items and events - I'm really, really pleased with them. Gun controls are a tough thing to screw up on the Wii, but the sword movement, thanks to the MotionPlus (and presumably some heavy software polish), is downright intuitive. It took me all of 15 seconds to jump into the middle of the demo and go to work.
Something I didn't expect was how nice the game looks, like XIII's comic book shading but without the comic book part. The game is just stylized enough to look gorgeous without itself with visual detail.