Excellent, a Khorne-based thread.
In a way khorne does have an advantage other the other gods because he is the god of war and battle and "In the grim darkness of the future there is only war" he has strength and skill in combat, but thats all he's got. the other gods know Khorne has the best soldiers so in a straight out fight they can possibly compete meaning they have to use more devious tactaics. For example tzeencth may trick Khorne into a trap, Nurgle could release a plague to kill his minions and Slaanesh might slow there reactions by distracting them with his powers.
However, all the gods are in a near-perfect balance and when one suddenly becomes stronger the others unite against him and they return to this near-perfect balance.
I find it interesting that Khorne has a sort of honorable side to him. I forgot where I read it but I recall a bit where he got angry with his followers who preyed on the weak or something along those lines.
maybe this will answer your question: "Khorne cares not from where the blood flows, only that it does"
Generally Khorne and his followers are bloodthirsty killers and usually they quite enjoy preying on the weak, but they enjoy fighting the strong even more.
And he hates sorcery so much, he equips some of his followers with anti-magic amulets and talismans or something like that.
Not all of his followers have such tailsmans, only the strongest and more useful (Kharn for example) but there is more to tzeencth then just magic.
Khorne is generally stronger than the others, but Nurgle is bros with him and generally isn't worried in contrast to Slaanesh being freaked by him and Khorne hating the everloving man shit out of Tzneetch.
Khorne hates Slaanesh because slaanesh enjoys pleasure and mindless slaughter is everything slaanesh is against, if you know what i mean.
nurgle and Khorne are mostly alright with each other, I'm not entirely sure why, perhaps its because khorne's daemons get to kill and nurgle uses the bodies, its a win-win situation.
Obviously Khorne hates Tzeencth because he uses magic and sorcery, which khorne considers cowardly, rage and anger are very different to wisdom and magic.