Trolls have more sta/dex/agi combined than Ogres. You'll max out that str with gear or buffs easily regardless. Frontal stun immunity is the Ogres' only real advantage at this point. During Kunark on live when they held the warrior best of the best, 3 of the final 4 were Trolls and the final two were Trolls.
http://www.youtube.com/watch?v=sgeGwNh6xrk