In my opinion, Dark Souls 2 is an unquestionable GOTY, a pure master piece. Greatly improved over its predecesors. I have 50 hours in and still counting. I couldn't fully apreciate the quality of DS1 since the gaming comunity for it was too small at launch. But now, when DS2 is bustling on PC with 60k of concurrent gamers on daily basis, I couldn't help but fall in love for this game. An online play and community for DS2 is just amazing.
And the game world and lore itself are just magical.
So what game could possibly steal the GOTY award from Dark Souls 2 this year ? Since Witcher 3 and Star Citizen were delayed until 2015, I don't see many contenders that could threaten Dark Souls 2.
Watchdogs possibly, but I doubt that.