User blog comment:Legionaire22/Underrated/@comment-2253300-20110901212334/@comment-10514705-20110901223318

Yeah, SniperGhost is right. At best, some of them are briefly mentioned. The other thing with Tu'Shan is his experience as a Chapter Master in comparison to Azrael, Dante, Marneus and Logan.

And... of course there is the fact that Marneus Calgar is the representative Chapter Master of Codex: Space Marines; Dante is the primary Chapter Master of Codex: Blood Angels; Azreal for Codex: Dark Angels and of course (obviously) Logan Grimnar for Codex: Space Wolves...