I'm kind of surprised after all this time 360 still has the graphics edge in some games.
That's the reason I got it in the 1st place, Oblivion apparently runs better on the 360.
If things are going to remain as they are I'll probably never get a PS3, as I figured at some point games released on both would start to look better on ps3
You are missing out on some amazing games. I don't see your point though, if you already have a 360 you can always get the multiplat games for it anyway. Besides, a decent PC will always blow the console versions away regardless. What makes the PS3 interesting is that its best games can't be played anywhere else, if they were available on PC I wouldn't have bought a PS3 in the first place. I can play Crysis 2 on PC and easily get a better performance than any console version. Same for ME, Oblivion, Fallout, etc. I can't do that with Uncharted, Demon's Souls, Gran Turismo, The Last Guardian, Heavy Rain, Infamous, Killzone, God of War, Resistance, etc.
Obviously the 360 has some great exclusives as well but in my opinion there isn't enough that can't be played on PC as well to make me get one. Most of the multiplats I cared for lately are as good or better on the PS3 anyway (dead space 2, vanquish, FFXIII, castlevania).
At the start of this gen I was really considering only gaming on PC but there are so many great games that don't get a PC version that by the time the consoles start costing less than 300 euro it becomes really hard to resist.
In the end it's all about the kind of games you want to play, not the hardware itself. If you can't live without halo, gears of war, etc obviously you'll get a 360, it's a matter of taste.