In terms of best game of the YEAR? No pokemon doesn't come even slightly near that title legitimately. Only when you're on a site full of poketards.
I pretty much addressed this in previous thread. The story was absolute shit this time around. It was thick, it was constantly in your face. You couldn't walk 3 steps without the game either screaming at you to go the other way, or to shove more useless story into your skull. Pokemon stories can usually be pretty annoying but they're never -this- annoying. I actually finally gave up exploring as I went and just decided to brute force my way through the story as fast as humanly possible just to get it over with.
Some of the music is pretty good. But pokemon usually has some solid tracks in each iteration.
They opted to remove gyms, which were fun unique little puzzly things. Not ever horribly difficult, but still cute. Instead we got "here fight like 6 of this exact same pokemon" and then "here fight this big glowing pokemon that summons the pokemon you just beat"
oooh, unique!
It has some nice additions in terms of convenience for hardcore players like easier shinies and easier IVs/breeding but that's about it. Bottlecaps got kind of gimped by requiring level 100 with no real means of getting pokemon there without grinding the elite 4 forever. Though nonethless a nice option to iv train shinies and pokemon you've grown attached to on your journey.
Overall in terms of just being a pokemon game, it's pretty hit and miss. To call it GOTY is a pretty massive insult to pretty much every game on that list which arguably deserve the title more for any number of reasons.