The thing I hate the most about the battle damage in the Arkham games is that batman still glides with his cape, despite his cape effectively becoming Swiss cheese by the end.
I think in all Batman Arkham games (except Arkham Knight) you get a damaged suit. In Batman Arkham Knight when you complete City of Fear to 100% you get a pristine version of the default suit. Not only it is not battle damaged, it can't be battle damaged.
It sucks that the arkham games never included a "Clean" suit after you beat the game. Like play the end game with Batman's suit from the beginning of the game all clean and ready. Atleast I think until Arkham Knight.
Man i always loved the battle damaged suit. Freaking Batman went through hell in each of the Arkham games for 1 night, and his suit certainly reflects that.