Sounds to me you need to widen your view on the class alittle. Its not as basic as you make it sound out to be. 24/7 combo rotation is something i personally dont like, and never use. You need to broaden your versitility. Allso you say a zerk spec has the CCs, but you can allmost have as many as a reaver. I have them all apart from the aoe knock (nd no escape) with proper cooldown on them, but as reaver it forces you to do a weaponswitch. (even bow if it helps your dps) Makes the class abit more versitile again.
Allso you should try some more challening raids. Erlik and T4. The class is what you make of it rly. And based upon your complaint. I cannot find anything suggesting you have exhausted the class.
On weaponry, a barbarian might have the biggest selection in the game. There are so many 1h and 2h ingame, and barbarians are one of two classes that can use them all. T3+ provides alot. To look at the selection: http://aoc.is-better-than.tv/armory.php