Metal Gear Solid 4 vs Super Mario Galaxy. Which is the Greatest??

[Idree]

I've played SMG for only about 1 hour, good game can't really judge.

I'm a BIG Metal Gear fan, and i was simply blown away by MGS4 :)

Don't think i can give a unbiased opinion but all i know is that MGS4 is interstellar overdrive :)