yes, barbs are probably hardest for jabazons

#1 jabazon at best gets 9-10k ar with perfect charms maybe even 11k

#2 barbs can EASILY get 15k+ defense

#3 even if barb doesn't use the uninterruptable skill concentration, he can just keep holding down zerk till it hits you and one hit kills you. I've never seen a jabzon good or bad take more than 1 bezerk from a well built barb.