There is so much room for debate over the 360 and wii and i have had various discussions on other forums. I think the Wii and 360 are two totally different things, one is providing us with a great new way to play games and the other is providing us with an all round entertainment system that takes console power to a next level. I suppose really it depends on what you want out of a console that matters, i agree not enough good games are out for the wii at the moment but the way i can play them and what's in store for it in the future is superb.
I brought a 360 for the great online features, gaming with friends, gamerscore, enhanced graphics and overall good games list. I brought a wii because i have so much fun playing in different ways, sending mii's, creating mii's and playing online aswell now that charged is out.
However i think it is too soon to rule the wii out completely from the future as it has only been out for a few months, i wouldn't be surprised if you ended up buying another one.