From my experience, most of the raid usually falls in line instinctively and naturally behind the guy or gal who has a) done it before b) is just naturally a good leader in the sense that if people mess up, they say " it's fine, just do X next time. I'll remind you if you forget. " A kind leader is 100 times better than a bossy elitist telling you that you are stupid for messing up once. Even the vets mess up occasionally. c) is someone who inspires respect from the rest of the team and usually it's someone most of the team knows. I have two friends who are like this and I'll raid with them any time but if I go into a PUG, it's a 50/50 chance two different kinds of people will vie for the leadership 1)the person who should and 2) the person who thinks they are just entitled to because reasons.