Hmm based on this list, I would reccomend:
Little King's Story - a lot like Pikmin, and has a ton of content. Took me around 37 hours to beat, and you unlock new stuff after you beat the game
Dawn of Discovery - Great RTS/god game on Wii. A ton of replay value.
Super Mario Galaxy 1 and 2 - If I had to pick I would chose 2, but they are both really fun 3D platformers. They could both last you a long time if you go for all 120 stars plus the extra stars.
RE4 - If you haven't played the Cube/PS2 version at least. Controls are perfect for this game. Has all the extra content the PS2 version has.







