I completely agree with this, and have done so.Banning the armbands of iron power and their ranged equivalent tend to help a lot, too...
His character concept is not a question of barbarian vs tempest... as he himself says, it's barbarian vs Iron Armbanded, Bloodclaw Urgroshed, Dwarven Weapon Trained, Dual Striking Tempest Fighter. And speaking personally, that just kinda rubs me the wrong way.
Well, keep the recent updates to Dual Strike in mind if you're looking into this.Tempest Fighters' at-will ability to deal massive damage to a single target was substantially nerfed in July. Thank goodness!
-O
Banning the armbands of iron power and their ranged equivalent tend to help a lot, too...

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.