Gotta disagree. I'd go the opposite and say there's too many city/village/castle type of maps in the rotation. If you want siege maps, go to the siege server. I think it sucks when you play 3 or 4 enclosed maps in a row (like the ones inside of a castle/city where there's 5 foot wide streets everywhere).
I really enjoy the open battles where you literally have 30-40 infantry against another 30-40 infantry fighting along a front. Intense and really reminds me of what I imagine when I think of middle age warfare.
People are complaining because their class can't 1v1 every other person or class in the game? Get the fuck outta here with that bullshit. You should have to rely on teammates for certain support. Ranged support, cavalry support, pikemen support. A 2h'er without support is going to have some problems with cavalry on an open field map, that doesn't mean they should remove all the open field maps from the battle rotation...it means you need to adjust your play style and run with some teammates who can support each other.