Boom
1. Dark Souls III (Favorite series ever probably)
2. Uncharted 4 (Fitting end, can't wait for TLOU2)
3. FFXV (Weird, long, Japanese, quirky, but ultimately fun as hell. Welcome back FF)
4. Battlefield 1 (Best shooter I've played this year - need to play TF2 though. After playing a ton of OW this was refreshing)
5. Planet Coaster (the customization in this is insane, but the park management is flimsy - as a builder I think this is a great little game)
Overwatch, Legion, DOOM & Civ 6 are honorable mentions - I've played Legion more than any game above, but it wasn't better than any game above and I can't with a straight face put an MMO in my GOTY discussions for whatever reason.
Overwatch was fun for about a month, but there just isn't much to it - if anything it just makes me wish Blizzard didn't fuck up Titan, as I think the IP has legs but in other genres maybe.