If you ever played Zack and Wiki, you would know how amazingly hard the game was and how much fun.  It really made use of the Wiimote and you can't help but think and smile, "Man, Wiki's a jerk."

And can I say anything more about Okami?  It's a beautiful game and even better on the Wii. It was a game meant to be on the Wii and although it's very long, it's worth it.  Especially if you loved Zelda. 

This article explains what all of us are thinking, "There is too much crap on the Wii."  It does a bit of critic bashing, but reading review after review of Okami and Zack and Wiki, it's not the critics (they love the game), it might have to do with the Wii fanbase, they just want easy to play games that are basically N64 rehashed.