What is better for barb??

Club if you want to use it with guardian also.
Axe if you have dagger set.
So basically, its matter of preference.

All depends on preference and what gear you have to go along with it

personally, i vote axe

but poor people mostly go for clubs, they are a bit cheaper.

axes look more badass though, for sure

depends what you plan on doing.
if just for barb, it doesnt really matter which.
(assuming everything is equal)