Theres a few things going for it but on average it is probably worse or alot more hassle than to be a more generic 2h barbarian. The totems first are slightly different from each other based on the resistance they eventually apply, and the same goes for the animals, different attacks are piercing slashing or bludgeoning for fighting weak or resistant enemies. Another benefit is some of these attacks are agile for some secondary attack work or don't use up a hand so they can be used for maneuvers or attacks when your hands are free. Also later transformations can give you a few more perks like movement or scent ect.
While its not great, the other totems don't seem great either or greatly balanced for eachother, and rage totem will probably be really strong when theres more splat books but right now also seems weak just because there is so few options outside of the totem powers.
Potential interesting things about animal totem though, dip into fighter for duel strike/duelwielding abilies. Does holding a 1d12 greatsword and having a d10 bite attack count for having two weapons ? Otherwise two d10s for higher 1h damage than most other classes can currently get.
Animal hide gives 2 ac over barbarian during rage, or would have if you weren't still untrained in unarmored defense so you are still the same ac and even worse outside of raging and fatigued.
Doing terrible dipping into fighter and then Grey Maiden can eventually let you use that d10 "1h" with a shield, though it would probably still be better to just get the dueling feat from fighter for +2ac.
