Warrior race

[Soothsayer]

Iksar stands tall with ogres as a min-max race by Velious. Frontal stun immunity loses most of its luster in a raid environment where aggro can be cheesed, so I'd actually tend to argue that Iksar is truly the min-max Velious raid tank race. Even if FSI is a factor, you're only getting ~3% more aggro / damage from being immune to stun. As noted by Sakuragi's warrior guide...

"a quick back-of-the-envelope estimate shows the value of stun immunity: mobs get their secondary attack every 8 seconds, bash instead instead of kick 75% of the time, hit 50% of the time, and stun 50% of their hits. So if the mob isn't hasted you'll be spending roughly 2 seconds out of 40 (5%) of your time stunned. Depending on how fast your weapons are, that's some 2-3% of your threat and damage"

Is such a negligible boost to aggro / damage really worth giving up the AC boost / higher AC softcap that Iksar get? I don't think so. The notion that Ogre is min-max is old thinking that doesn't really stand up to scrutiny IMHO.