Somewhere else on the forums, someone made an observation that really struck me as insightful. He/She said something to the effect of:
Leaders confer opportunities to the other heroes.
Controllers deny the enemies of opportunity.
My understanding of that is that leaders incentivize actions through buffs. ("I want you to hit this, and if you do, it's an easy target/you'll deal more damage/get temporary hps.")
Meanwhile, the controllers are leaving the monsters flummoxed by robbing them of choices. ("no you can't do that, that, that or that. You can however, do this but only this.")
Leaders confer opportunities to the other heroes.
Controllers deny the enemies of opportunity.
My understanding of that is that leaders incentivize actions through buffs. ("I want you to hit this, and if you do, it's an easy target/you'll deal more damage/get temporary hps.")
Meanwhile, the controllers are leaving the monsters flummoxed by robbing them of choices. ("no you can't do that, that, that or that. You can however, do this but only this.")