I've owned a Wii since launch, and have thoroughly enjoyed many hours of gaming with it.
I planned to buy a 360 late last year after the price cuts, but I could not justify spending the dough, because I didn't have enough time to even finish all the Wii games I owned. So I decided against it.
More recently, I've thought about getting a PS3. Several of the games I'm interested in on the 360 are available for PC (with the exception of Halo) or similar titles will be available for PS3 (Forza, GT -- and with GT, I already have a Logitech Driving Force Pro, not compatible with Forza). I think I can live without Halo, and really, the final two nails in the 360's coffin may be the subscription fee to Live and the fact that Blu-ray has trounced HD DVD. Although Blu-ray has thus far failed to surge ahead, the format war is decidedly over, and any movies I'm interested in will be available on Blu-ray in the near future. Oh, and of course, the jury is still out on whether they've fixed the RROD.
Oh, and I very much enjoy programming for the Cell, and would likely install PS3 Linux and play with it some more. :)
So, with all that being said, 360 supporters, tell me why I should change my mind back to the 360. PS3 owners feel free to rebutt anything they say, but both sides please be nice. :)