Being an original CBT player I stick with dualsight and blackscent as my favorite maps, justified as being the most played tournament maps to date (maybe hammerblow not blackscent).
I hate hellhound, showdown, and supply. Just poorly designed and not balanced enough to be played in tournaments (they aren't in any tournaments for a reason). If you think I hate all new maps you are wrong, I like airplane, cannon, and india enough to play them and not leave right away.
Aslan/radar better be good when they come.