What Killer do you least enjoy to play against and which one do you enjoy most to play against?
For me I would have to say that I dislike playing Freddy and Spirit the most. Freddy to me is just extremely boring and tedious to play against as almost every game against him is the same (Snare, Down, Hook, Teleport, Pop, Repeat). Spirit is just a guessing game with very little counterplay, and if they have ears then you're more than likely dead.
Favorite killer to play against though I would have to say would be Demo. His aesthetic and music is very well done for both sides, and playing against a good one is always a fun challenge.