Leveling, use aggro or neutral if you don't like the increased PE loss from attacks. The following is assuming you're GM.
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Aggressive should probably only be used in 1vs1, PvE, and generally only when you aren't the 'main' tank of the group.
If you have 2 PCs behind you in the formation. You should be on defensive, or at least neutral. Never aggressive.
If you are a caster. You should never. Ever. Under ANY circumstances ever type in the words 'mood aggressive'. Never. You get no benefits from it. At all. Literally.
The only classes who should probably consider aggro are scout(who should always be aggro, IMO), rogues for BS/circle/etc, merc, barb, hellion, paladin. And those last 2 should probably never ever use it if they're alone, except for maybe cleave/HAMMERSKILL. Swashies should never use aggro, IMO. Unless you're like, fighting rats or something.
Neutral is perfectly fine to use and most people probably should use most of the time. Casters should always be on it, aside from the rare exception. Which only consists of Shamans and priests being shot at. You get your full set of attacks, and no penalty to anything.
The only classes who should be aggro 90% of the time, IMO are scout and rogue.
Swashies should probably be defensive 90% of the time. And switch only to neutral if they want their full set of attacks.
Per weapon/race/row doesn't really matter.
P.S. My melee characters that aren't swashies always die horribly. And I play a pretty good scout. So. Consider that with my recommendations.
