it will attract the wrong crowd or at very laset not give a good Idea about what ava is about.
"Wrong" crowd...what's the "right" crowd? At least there will be a crowd, eh?
What's the AvA about? Two-sided fights in an arena where you can play however you want?
It would be interesting to see how many come over...and also to see how lopsided the numbers might get when there won't be any 190 vs 190 or Spit vs Spit, etc. fights. I'd also suggest a medium map set up to require 1000% bases ownerships and no map reset so the arena won't get porked.
Icon range; 3k for both is fine, although it turns some people away because they're used to 6k and are afraid to try something different that might make them actually think and/or communicate while they play.