I also like that the PS3 has the built in BluRay player, while the 360 needs the 200$ extra HD-DVD player, and Blu-ray is a more supported type, holds more gigs, and has about the same quality if not better. I don't care if I don't play many PS3 games NOW, I can play my PS2/X Games... I have many of those
I own a PS3 over a 360 for the following reasons:
DVD player with upscaling. (sold my Oppo, which says a lot about the PS3's quality as a DVD player)
Blu-ray player
PS1 and PS2 upscaling
I don't own a PS3 at the moment because of PS3 games. This means as long as you are willing to settle for the PS3's other features untill some AAA games come out, go for it. Quite honestly I don't even find many 360 games that are out at the moment that I feel are must haves. This fall will see huge releases for both consoles, but FFXIII, MGS4, and Devil May Cry 4 are all must haves for me.
I'm hoping for some Black Friday deals for the 360 this fall, as I think it will have a price drop on top of the BF deals. (I also am hopeful for the release of the 65 nanometer chip this fall)