New monster spawn spots

I was reading through Isaac's endangered monsters thread and was wondering which monsters you'd like to see moved and/or replaced?

note: be reasonable, we don't need mass boss spawns or newties spawning at HHG1

personally I'd love to see more drakes (more of the types minus the ice ones) spawning outside perion as they seem to fit there

and (possible in CWK2) a seperation of the spawns of the 4 types of cwk mobs (firebrands, windraiders, etc)