Of course this is according to it's users and visitors who voted in the poll.
Winner: Super Smash Brothers Brawl.
Runner-up: Metal Gear Solid 4.
Third Place: Fallout 3.
Game of the year poll: http://www.gamefaqs.com/poll/index.html?poll=3363
Game of the year (final) poll: http://www.gamefaqs.com/poll/index.html?poll=3364
Game of the year (final, final) poll: http://www.gamefaqs.com/poll/index.html?poll=3365
Thoughts: inb4 MGS4 deserves it more (even though it's entirely an opinion :P).
Anyways, all great games (even though I haven't played Fallout 3 yet but plan to buy it soon). I personally think they all deserve it but only one will get GOTY. I personally liked Brawl the best though, but that's just me. And this was just Gamefaqs as well.