My little story is I searched and searched before Christmas for a Wii and the closest I got was 9th in line where 6 existed. So I was forced into the 360, not that I was totally against it but it was my second choice I wanted to wait for the mythical A/V version.
Today Jr. has a birthday in six weeks, last night we talked about it and not getting the Wii (as we planned all along) because of things like DDR, Guitar Hero 2 and several other games the first two mentioned cost quite a bit due to additional hardware. I mentioned to him that the Wii would have a lot more to choose from come Christmas anyway, he agreed.
The 360 has gone well beyond my expectations and is the best console I have ever touched (I am a PC guy). As a family we NOW play a lot as a family and have variety in our games like the variety in a family. I thought it was going to take the Wii to bring my family into gaming, but the 360 did it. My wife has comeback to gaming from being 15 years removed, the card and puzzle games brought her back in and that led to the other stuff as well now. The arcade stuff has also been good if not better then the professional $60 offerings imo, we like a ton of things on the arcade, much more family orientated.
I also don't get that real excitement of ownership with the Wii at its forums here. There isn't a lot of talk about it and it's games. I am now starting to see remorse. But please don't take that as a slam too much, it's more of a heat check for me as so many things fight for my dollar that I have to be choosy. I still love the idea of the remote and there are some games that look like they could be wicked fun for a family. I'd still love to own one someday but cost of entry for a console is well beyond the list price of the unit when you factor in accessories and startup games.
The only negative with the 360 is the high rate of red lights. I haven't rec'd one and keep everything crossed over here to help fight that. I also picked up the HD DVD player and love that, I only use stereo mode right now due to the 5.1 issues with it, but still love it!
There are now evil thoughts of a second 360 entering our house and a second Live account. There are a lot of coop live only games that we are missing out on playing with each other over here that a second unit has some merit. MS would earn major points in this house if there was a way to spawn one $60 game on multiple "linked" 360's, hint... hint... It only helps them as there is no way I'm buying two $60 games in one house, so it would be a welcome, great word of mouth feature. lol
PS3 hovers as my BD alternative in the case I have to go there.