My list of favorite Wii games:
1. Super Mario Galaxy - A return to form, or rather, a new beginning for the Mario franchise. It's also ridiculously fun and unique to boot
2. Tatsunoko Vs. Capcom - Awesome fighter and the true successor to MvC2. The arcade mode is incredibly addicting just for the awesome AI and the varied and creative roster leaves nothing to be desired (other than Dante)
3. Rune Factory: Frontier - Charming farming sim / rpg game that consumed 250 hours of my life and I'm still going. Gotta get those level 10 flowers...! XP
4. Super Smash Bros. Brawl - Awesome albeit disappointing sequel to SSBM. The battle system and depth are really lacking in comparison to its successor which prevents it from placing any higher on my list, but it's still fun regardless
5. Muramasa: The Demon Blade - Beautiful game and great music as well as oddly soothing game play. The game's pretty linear but its execution is fantastic
SMG and SSBB are definite no brainers in any Wii collection, but I really recommend checking out the less popular games on my list. There's a reason why I loved them so much ;)
Mega Man 9 and 10 and Cave Story also get honorable mentions for being my favorite wiiware games
