Current gen consoles have had lots of high quality games and some of them were quite overlooked and some others were underrated for some feature that didn't appeal to gamers even though they did a lot else right. Here is my list.
1) Batman: Arkham Knight - There isn't any game this gen so hated by fans of its series as Batman: Arkham Knight and I feel most of the hate was unsubstantiated and wrongly directed at the game as a whole, when the biggest issue it had was a messed up PC port while the PS4 version was just incredible and still is one of the best looking PS4 game. The other problem brought up by people, the Batmobile wasn't too bad and the rest of the game had the greatness of the Arkham games, good level design, story and pacing. This game is my 2nd favourite of 2015 and better than Witcher 3 to me.
2) GT Sport - This game is beautiful, plays brilliantly, has great online and a good campaign. The reviews at launch weren't completely off the mark but they were too critical about what the game didn't do rather than what it did. That is not true now anyways, this game now has a good campaign, more cars and tracks on top of a strong base foundation in its fantastic gameplay and driver and sportsmanship rating.