I think either creed or warfare 2 should have won best multiplat of e3.
Assassins creed best game this year?? ....ummmm uuuuu thats a tough one. I really like how smooth and tight this game is looking and the animations are salivating, but it'll contend against the likes of modern warfare 2, uncharted 2, splinter cell: conviction etc. All 3 look equally as impressive (uncharted 2 and MW2 even more impresive).
Honestly out of these four games, AS 2 is the least likely to win GOTY.
ps. I love this game, am not knocking it, it's just far from hands down in my opinion. It's not even the fav.
Mass effect 2: 2010 GOTY! You heard it here first kiddies.