I've got a sort of build put together (relying on Iron Heart Surge to end Frenzies - YMMV.), but I'm not really proud of it, it feels kind of kludgey.
Here are the bits I'm trying to accomplish:
1) Optimize Power Attack (Leap Attack, Favored Power Attack if I could fit it in)
2) Optimize Damage (Battle Jump doubles damage when you drop down 10', combine with Up The Walls)
3) Wild Shape into a War Troll ASAP
4) Dungeon Crashing + Knock Back Feat.
The problem is that by cramming it all into one build, I don't get Knockback until level 12, at which point the Dungeoncrashing isn't nearly as cool as it was early on.
Build Stub: Fighter 2(Dungeoncrash)/Barb (Pounce, Whirling Rage) 1/Warblade 1/Ranger 1/Psychic Warrior 1/Cloistered Cleric 1/Ordained Champion 1/Abolisher 1/Master of Many Forms 2/Nature's Warrior 1/Frenzied Berserker 8
Feats: Battle Jump, Endurance, Alertness, Improved Bull Rush, Power Attack, Cleave, 2 feats set on fire for FB (rage something 1 and rage something 2), Up The Walls, Knockback (Only works while wild shaped), Shock Trooper, Leap Attack, Weapon Focus.
Feats gained from:Fighter 1, Psychic Warrior 1, Human, 2 Domain Trade-Ins via Ordained Champion, 7 from levels = 12.
I just can't get the build to fit together so as to seem playable from the beginning. Which it really ought to be since a Whirling Frenzied Dungeoncrashing Barbarian seems like a whole lot of fun.