Abby and Ghaz would be close. Abbys got the wounds (and no arms) and Ghaz is the tank of doom (for a bit) !!!
I actually wanted Warboss Gorgutz. He's been in so many games he needed to sneak into Dawn of War 2 just so everyone is like "holy shit he lives!"
1. Gazhgull Thrakk he is the strongest out of them all in a straight up 1v1 2. Eldrad Ulthran Because he predicts the flow future he will know not to get crushed by either one of the 3 just steer clear maybe get a good sniper and takem out from afar 3/4. I would like to say Magneus is stronger than Abbaddon(don't know his stats) but I'm sure a chaos player could say otherwise
Eldrad is pretty much dead by the end of 41'st millennium. Abaddon is useless. Gaz is awesome and strong. Calgar has massive plot armor. So I ma going with Calgar, simply because of plot armor. I mean... he killed Avatar of Khain in one punch, he is going to rip apart Gaz in close combat.
Has to be Abaddon. His topknot is so stylish it'd dazzle the other combatants into submission. Plus, you know, Claw of Horus...
Or at least Soulstorm. I think they say the IG won, but I doubt that when they sent a bunch of baneblades away.