2006: Okami
2007: Super Mario Galaxy
2008: Tales of Vesperia
2009: Arkham Asylum
2010: Super Mario Galaxy 2
2011: Portal 2 (Holy ****--Arkham City, Sonic Generations, Skyrim were also released this year.)
2012: Xenoblade (no contest--nothing else I've played from this year came close)
2013: Rune...