Dirty, yeah, it's quite competitive with the Tower. But generally, Barbarian is considered weak on Jebus, and that's become a trend. I'm specifically interested in the 8th game.
In my opinion, on Jebus, Barbarian is weaker than Swamp, Castle, Necropolis, and possibly equal to Dungeon (although I think Dungeon is worse). And he simply crushes the rest (Rampart, Tower, Inferno, Conflux).
Well, for example, Vicc considered him one of the strongest and defended this point of view, as far as I remember. They even had a match with Cobra.