yeah, i think that this is the way it goes:
troll beats iksar because slam, armor (iksar can't even wear GEBs), and stats
troll beats ogre and barb because regen
oh yeah, i don't think it's been mentioned that iksar has forage, too. that puts them firmly above barb and probably tied with ogre.
i would roll troll,
innoruuk, 25 stam, 5 wis, and pick the face with one eye poked out