Suggestions on Empowered Iso-8

Ok, folks. Post your opinions here, discuss, or ask questions regarding the uses of Empowered Iso-8's.
For instance, I think the most useful one is the empowered with Morale boost (since I almost exclusively use a generalist Agent)
As for the heroes, I don't own every Empowered, but I like Thor's Thunder God.

for me, the close e-iso is better than the aggressive e-iso for scrapper qs. the almost guaranteed crit from the close e-iso (L6 has deadly crits, blast from the past also has deadly crits) outweights the mediocre att boost provided by the aggressive e-iso.

morale boost for Gen, attacker for scrapper are my fav.

I'm not going to list the ones you can get from Heroic Battles. I'll go by the ones you can get from the store. Relentless works best for most heroes because turns are very important in PvP fights and you can't risk losing one that can impact the outcome of the battle. Surprising which grants Skullthumper is surprisingly good when used by heroes with AoE attacks. The downside is, it's only got 10% chance to cause Stun.

Gold-bought EISOs that are worth getting are Inspiring (Morale Boost), Explosive (Collateral Damage), Quick (Snappy Service) and Aggressive (Offensive Fighter).