There are lots of enemies that continually generate mobs until they themselves are killed. One of my favorite parts of this game is seeing how large a kill streak I can achieve. It's a great source of fun, gold, items, and xp. What I want to know is this...
What enemies should I seek out for this purpose?
I'm looking for enemies with the highest mob spawn rate so I can feasibly just keep cutting them down.
Where are they typically found?
What act, quest, and area do you usually spot them? I know these areas are random, but a general idea or potential scripted event would be nice.