360 has more games, sure. And is has some pretty damn good ones. It's been out longer. (I have a 360 and a Wii, for the record)
The Wii has been in need for some more games lately, but they are coming... however, what makes graphics childish? Just because the Wii is 250$ instead of 300 or 400 or 600 (cheaper components) doesn't make it bad. It doesn't do as high res as the 360 or the PS3, but even on a decent TV the Wii still looks just fine.
I dunno, I enjoy Zelda and Trama Center and Warioware- I can't wait for Resident Evil 4 (if the pointing works well)
I dunno, the Wii deserves some credit for being what it has always claimed to be.