>>54795707I definitely liked BW better. The story and characters were more enjoyable to me, and it kept to its unique identity while BW2 reverted back to throwing old gen Pokemon everywhere.
The map structure worked better as well in my opinion. Instead of creating new maps for the post-game ala FRLG the Gen 5 sequels opted to simply move what was early-game routes to the post-game, and vice versa, resulting in a mishmashed retreading of the games from a mere one year prior. As such BW2 ended up having better post-game facilities but less to explore before and after the credits.