Short haft makes you able to hit opponents adjacent to you with a -2 penalty so it turns your weapon into a reach 10 and normal range (like a spiked chain).

Combat brute has 3 options , but 1 is this: make a charge with power attack , if you hit than next turn your power attack does 1.5 damage 1 handed or 3x times damage 2 handed (which you are)

Another option is that if you sunder the guy's shield (and destroy it) you get a free attack on him.

A ring of improved evasion is a must (especially with your saves)

Maybe a way to teleport and fly to catch up to a wizard.

your AC should be really high shield bonus+Wis+light armor + Dex