Chaser. It just is a big eyesore for me. Oh yeah, FUCKING RATS KITCHEN, PLEASE KILL IT WITH THE FIRES OF HELL.
I like playing each of these maps. I've actually just learned to like them. That being said I wouldn't mind if any of these were replaced, but I would miss them like I currently miss the Alps map.
I cast my vote on Amsterdam; reasons being the following 1. Too large, and too dark 2. Too easy for traitors to win, if you don't get at least 4 kills as a t on that map you are trash 3. It is usually only picked with Random