Almost none (hi demon) of the actual tournament players have any problems with playing tox and aero, they have both been in the same pool quite often. Pretty much all of the whining about these maps is done by specs.
Even though I dont think aero is one of the best competitive maps, I'd love to see it in because it's fun to watch and a classic map, and that's what the quakecon mappool should be made of exclusively imo.
but seriously, i'd love to see Nameless Place as duel.
i know you people hate it, but its a great map. really claustrophobic but with tons of stuff to fight for, and great opportunities for positioning and absurd shots.