This competition was an advertising stunt for GTA5
http://uk.gamespot.com/greatest-game-series/peoples-choice/index.html
the contest was set for GTA to win but TES outvoted it by the tiniest amount, instad of making anything of it, Gamespot just brushed it under the carpet.
I just find this hilarious and thought i would share it
http://uk.gamespot.com/forums/topic/29448932/no-announcement
Also the relevant post on the Gamespot forums
This is nothing to do with the poll, it's about gamespot's reaction.