[Baalz]

Well, out of what, a couple hundred pretender chaises available there are probably a dozen to twenty that are almost always picked by experienced players in my experience. Out of those there are a handful that are *very* commonly used because they're seen as being much more powerful than the others. I'd say probably 30-40% of the time I fight an experienced player they've got one of the following:

Prince of Death
Wyrm
Cyclops
some flavor of lich

The reason these are so popular is because they're capable of expanding aggressively early with very little/no equipment/buffing, capably supporting/defending an early rush, keeping relevance into late game as you start adding buffs/equipment, and are fairly cheap.