I am also in support of removing Exchange. Apparently there is a glitch where some of the doors will close immediately after they open, and when a bunch of people attempt to go through said doors, only about 1-2 people make it while the others get crushed or are trapped until the doors reopen. Not sure if that's how the map is though.
As for Surf and Helms Deep, I am not sure about removing them, especially Helms Deep since it's my all time favorite map for ZE. Also, from my experience, the glitch for Helms Deep only happens from time to time.
