Why do you think the PS3 sucks? It's priced similarly to the Xbox and has a powerful CPU and GPU, good game selection, nice controllers, and support for what's currently the most viable way to watch 1080p movies along with streaming capabilities for the future. The Xbox has better game selection, but since I'm not a serious gamer, I'd rather have Blu-ray capability.

I think the Wii is cool and it definitely broke into new markets. Party/casual games are a big thing and I like playing it at friends' places. Families I know get really into it, with parents playing as much as their kids.

I'm sure there's little incentive for Nintendo to do so, but I'd gladly pay another $100 for a more powerful version with HD graphics and more HTPC-like capabilities.

ETA: The only bad thing I've heard about PS3 is how difficult it is to program for from former game developers. Publishers seem to be pretty good at getting good results with it, plus you can install Linux and tinker with Cell programming if you're so inclined. MIT has some really good slides and notes from one of their courses online (http://groups.csail.mit.edu/cag/ps3/).