I can’t say if it was the best year as I haven’t looked through every year, but 2011 was a pretty strong year that sticks out in my mind

https://en.m.wikipedia.org/w/index.php?title=Category:2011_video_games&pageuntil=Don't+Take+It+Personally%2C+Babe%2C+It+Just+Ain't+Your+Story#mw-pages

Some notable titles (for me) were skyrim, portal 2, LA Noir, ocarina of time 3D, star fox 3D(do these two count? They were technically remakes for the 3DS), skyward sword, Dark souls.

Other titles that might be notable (there might be more that I don’t list, I’m just skimming quickly) Amnesia, battlefield 3, COD MW3, Catherine, Crysis 2, dead space 2, gears of War 3, hatoful boyfriend, little big planet 2, Mario kart 7, mortal kombat (2011), no more room in hell, red orchestra 2, saints row 3, SMT devil survivor 2, tekken tag tournament 2, terraria, track mania 2.

Again there might be some i missed(especially playstation releases, I think i maybe missed a resistance game or something) but those were some notable ones I saw.