Thought I'd chime in and toss out my tanking rotation which easily holds 3 mobs at lv50.

Pull with shield
Flash the adds
Do one rotation of the aggro through RoH
Circle of Scorn everything.

If 2 mobs, do a rotation of aggro combo on second mob, to land RoH debuff and hold its attention.
Repeat a combo on each mob till the first is dead. Flash is not needed.

If 3 mobs, split the aggro combo among all mobs. Do first two hits on the second mob, RoH on the third mob.
Flash for good measure.
Do a full aggro combo on main mob.
By this point, the main mob should be dead or very close to it, and I can shift full attention to the second mob.

When doing 3 mobs this way, try to land RoH on the add that relies on physical attacks, though this really only matters in some pulls in AK for example, with the Hound Lights being magic-based.