It's really hard to come up with polls that haven't already been done to death... :I
I'd say it depends on the player count. You don't want a gigantic map but only 4 players total, and you don't want a small map but 16v16. Right now, Conduit 2's maps are the right size imo. They are both large, and there's plenty of action considering how fast you can move in the game.