Anomaly would be great.
For some reason it's my best map in Control / Iron Banner (I snipe). Don't think I've gone less than 2.00 K/D on Anomaly in this Iron Banner and had some great games of over 5 K/D and then one game where I must have had host and been lagging because I had 28 kills with a 9.33 K/D.
The key to the map (for kills at least) is to take zone A. People always seem to want to capture C (usually because C spawn is easier to take zone B) but zone A gives you the best routes for killing other players (which ultimately is more important than trading zone control).
B is such a clusterfuck that I just go rogue and constantly go for A and C. Sometimes it causes the other team to have to come back and leave B alone for my team.