Out of that list? Space Marines, Raptors or Sharks if I can get them. Boy what I'd give for some Guard action though.
Hopefully Night Lords make it into the Chaos Space Marines playable factions... although most of them don't really dig the whole chaos gods thing.
Chaos, because Slaanesh welcomes all and inspires all to be the best they can be and then pushes them beyond any conceptual version of their best. Let us record the screams of those we slaughter and replay them amplified to instill further terror into those we have yet to flay!
Wish I could play Imperial Guard, where the real warriors fight. I'll probably go Eldar or Ork since that isn't an option.
Space Marines Space Wolf legion. I'm an eldar corsair on tabletop, but fenrisian ale and my fellow ale...wolf brothers tie me strong to the Sons of Russ.
Chaos, because it gives the more possibilities of roleplay, dépending of how they turned to chaos, and why. (Please, tell us you will pay attention to the Roleplay!!! I'll bring my guild from SWTOR who did not give a damn of Roleplayers! lol I'd get Eldar on reroll, for the same reason.
Foolish humans, so quick and eager to draw sides and claim allegiance to this banner or that. You know so little of the universe and yet think yourselves entitled to be masters of it. You are precious little different from Orks -- thought at least when the Greenskins fall into infighting they do the galaxy the favor of thinning their numbers somewhat quietly. You, on the other hand, raise as much turmoil and pestilence as you can and leave whole worlds burning in your wake. When the last human dies, the galaxy shall be better for it. The Craftworlds shall endure... we shall see to that.