I was thinking about barbarian tweaks in my fantasy setting and one of the tweaks was making the rage powers a bit stronger. I agree with the fact that most of them are laughable and I want to make barbarians bad asses again. At many points now it seems like fighters can pull of the job of a barbarian in heavier armor. I also started to add new rage power abilities for the barbarians such as a whirlwind attack while moving. I also thought about giving them fast healing equal to their damage reduction while raging. So far, I'm trying to make them awesome without completely destroying other classes in power.
P.S. - I do have to say Barbarians are still beastly with their rage, especially at low levels.