I don't know, I would say HOB is a pretty good candidate. It's about as good as most of the "big" GOTY contenders were last year, yet it didn't get nominated because it didn't have the recognition.
but I digress. personally. I don't consider "games" that don't have that much story context as SoT a game anymore. they are more of a hobby.
That's really weird, especially considering games were originally something that had nothing to do with stories and just had to due with competition or rule sets. But that's ok if you have that opinion.