what?
6 straight damage
+3 str
30% haste boost
AND easily multiclassed for nice benefits
vs
10 STR
-3/+3 PA
+2 crit range
barb can currently only multiclass 2 lvls w/o losing a rank of crit rage; a tempest fighter can rock the socks off the stats for a pure or multiclass barb
and even pure, the barb isnt that much ahead, and not ahead at all when the monster is crit immune