Oh, your god, that was horribly wrong.
Link to this "lighting engine" ?
"Not only that but the memory architecture inside the xbox is far superior than the ps3" - lulwat? You do know the PS3 uses 256MB of GDDR3 and 256MB of Rambu XDR2 DRAM, right? - Monumentally faster!
"PS3 ran at 640p with no AA and lowered textures while the 360 ran at 720p with higher textures and 2x AA" - No, the Xbox does not have any form of modern AA; you just pulled this out your ass.
"The ps3 exclusives also look worse than the 360 exclusives" - Being that the only new (decent) exclusive is Halo, I'd like to see some proof.
"PS3's hardware is weaker on paper" - At what? Floating point arrhythmic, anisotropic filtering etc?
"The CPU can't effectively be coded for and the gpu is weaker than the 360's" - You probably meant to say something along the lines of "it's harder to develop on".
"It has no on die ram so there is never anti aliasing" - What your saying is completely insane. The Xbox does not have on "die" RAM, nor does that play any role what so ever with AA
All in all, looks like you pulled 95% of that from thin air.