My updates:
Wario Ware: awesome, but replay value is pretty low. More fun than the Gamecube version, but THE MULTIPLAYER SUCKS BAD, that is a shock. All the multiplayer games use one controller that must be passed around. Get your controller back covered in cheese doodle dust. Man, all yous get the fuck out of my basement. Assholes.
Madden: my favorite game, best Madden ever, completely annihilates the XBox version in gameplay, I'd say a must-own. Playing Wii Madden was like, man... until this, I have never played Madden before. A++++++++
Rayman Rabbits: I despise the entire Rayman series, hate it to hell, my buddy bought the game, and while it exceeded my expectations, I still can't say I liked it. It's a little like Wario Ware, all minigames, but in the mini-games you do the same friggin' thing for 2 straight minutes instead of 3 seconds and move on, and if you fail, another 2 straight minutes of doing some frustrating task. Lame. Don't ever buy any Rayman game, seriously.
Monkeyball: Huge dissapointment. The problem with the multiplayer games is that you play games that would be simple in real life (ie. ring toss) and the precision control required to succeed makes them incredibly frustrating. You think, fuck, this would be so much easier in real life. See, this is why Wii Sports is so good, you're playing pro tennis like no problem, awesome. But getting frustrated over tossing rings onto sticks? GTFO. Madden mini games are the perfect middle ground, Madden minigames are what Monkeyball should be. Punting, kicking, precision throwing, they require precision, but it doesn't make you want to tear your pubes out. Except for the defensive drills, fuck to those. Monkeyball one player, not that good either, I dunno what happened.
All in all, Madden and Sports have been the only serious keepers so far.