My favorite 1/2Orc 2WF build was a sword & board with a Flail and a spiked shield.
Because he was a bounty hunter concept, he was a Ranger/Fighter. On top of 2WF, his feats were Improved Shield Bash, Combat Expertise, Improved Trip, Improved Disarm.
Discovery: 2WF is much easier against prone or disarmed opponents.
He died before reaching his full potential, though. It was not because of ineffectiveness, but because when he charged through a door he intended to break down, another PC managed to open it just as he got there. There was only a narrow ledge next to a deep underground chasm behind that door, and he failed his Dex roll (Die roll: 2).