A couple of nice feats I've found:
Brutal Strike: when you make a power attack with a bludgeoning weapon, you can declare it a brutal strike; if you do that, they have to make a Fortitude save against DC 10 + bonus damage from Power Attack or be Sickened for one round.
Great Throw: Mundane battlefield control just got scarier.
Why? Get an Aptitude Bolas. Optimize the range increments. Laugh as you drag the guy 50+ feet away from you adjacent to you (or, if you have a reach weapon, and are standing near something dangerous... yeah.) You also get to add your base Unarmed damage. Nifty.
Great Throw goes great with standing near lava. Or next to a ledge above a lake of acid with acid breathing sharks in it.
Hope they make the climb checks to hold on!
Or, if you can get the reach out long enough, it's a great way to bring flying creatures down to earth.