one other thing i'd like to point out is for DPS:
kill order for the vast majority of pulls (not all of them) should be NORMAL, STRONG, ELITE, CHAMPION. often there are 5-6 normal mobs with 5k health in a pull, and they are spread out all over. they die so fast that it's pointless for me, as a tank, to waste my energy running around trying to collect them. I am trying to keep your safe from the big hitter mobs.
You'd be so surprised how many DPS don't know this.
I totally forgot that point. I guess I've just gotten used to running with 'good' DPS who don't need to be told that (yet still stand outside of the healers AoE heal.....)