Also, agressive can drop the book for tier one armor quests, duskfall chronicles. I as a nec with just LR5 and CA2(3), can tank both the agressive and Drunt with zero problems. Battle leader hurts me though, but slowed he is a wimp. If doing the battle leader can also run over and hit the wandering "a stalking feran" that is PH for the feran pack leader, the walker is in the area before you cross the bridge to go up to the Menlo area.
http://eqbeastiary.allakhazam.com/search.shtml?id=16805
Pack leader not that hard even unslowed.