You'll be stat capped in Velious for sure from what I hear, and Iksars lose their major inconvenient in Velious. If you're looking at Velious, it's indeed more of a tie between ogres and iksars, if you account for the natural AC bonus and Greenmist
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Remember though that having higher stats gives a much larger freedom of gearing letting you wear more resists, HPs etc. than being forced to focus on STA gear.
Just follow the best advice: play what you think is cooler
[You must be logged in to view images. Log in or Register.] At the end of the day, everything's viable.