So again we faced some argumentationing in our raid and it was about prios.
1st Prio: Tanks. Why tanks? Because bosses doesn't hit crushings to healers and dps and secondly they hit hard.
2nd Prio: Healers. This should be obvious, tank receives crushings and shit so we've to heal them. Under 1500 +healing its impossible.
3rd Prio: Dps. Ehh, you just press few buttons and raid goes on but not without proper tank.