They both look quite similar (where Gears 2 is noticeably greener), but Gears 2 looks a bit more sharper and refined then it's predecessor.

Not much difference in any of the games for both consoles. In some of the screenshots the 360 seems to have slightly better textures, where at others the PS3's graphics are mildly more detailed. But both games seem to have even graphics at the whole.

I've got the 360, not the PS3. But even if I had one, I wouldn't be wasting my dough on something that speeds up loading for a few seconds!

Both consoles have sharp graphics. But in total comparison, 360 has sharper graphics then the PS3.