Probably MKWii or No More Heroes.
No More Heroes, MoH:H2, and of course Melee (I still play the cube, can't let the Wii forget about its' predecessor)
I should play MoHH2 more often...
Probably Bully: Scholarship Edition. Try it, and you will see what I mean. I have probably acumulated at least 60 hours on it.
currently i play Mario kart Wii the most
3-way tie between Super Smash Bros. Braw, Resident Evil 4, and Boom Blox.
Super Smash Bros. Brawl, Metroid Prime 3: Corruption, and a crapload of my Gamecube games.
All-time, I've probably played Brawl the most.
Currently, I've been playing MKWii the most.
RE4 has probably gotten the most amount of hours of playtime.
Most recently the game it's been is the up to 5-player Bomberman game courtesy of the VC.
It's never really turned on ever unless I have friends over and we play Bomberman.
'Tis a shame.
Overall, Brawl, but I've been playing Okami the most lately. I beat it, but I'll probably start a new save file soon.
maybe brawl or zelda tp
Brawl.
Damn... I want No More Heroes...
But i've been playing Okami quite a bit. Its so awesome D:
Brawl. I'm playing it as we speak.
While I haven't really been playing my Wii that much, I'd say Resident Evil 4.
Well, usually Brawl or Mario Kart the most. But I've been playing Mario Kart Wii a lot more lately.
SUPER SMASH BROS BRAWL
although i do occasionally play Mario Kart Wii. I plan on getting Madden 09, so i'll play that a lot. i would play 08 a lot, but i didn't get it cause it was a piece of sh*t for the wii
Sega Sale, yay. That means I got Secret Rings and Sonic Riders [or w/e the Wii one is] for ten a piece, so, they're getting play time, along with Monkey Ball 3 [15 bucks], MaSatOG [20], and SSTennis for 25. Woot.
Super Smash Bros. Brawl for right now.