I've been running boba, bane, 88, Zam and st Han and I can hang in the top 20 however the entire top 10 of my shard is zmaul leads and a couple already have Nihilus beefed up.
The first turn is ridiculous, Aoe stun, aoe daze, aoe DoT with speed down and aoe cool down on all abilities. Pretty much impossible to recover from.
My poor bounty hunters are just completely outclassed. Desperately need a new bounty hunter, hopefully embo or bossk with a mass cleanse. Another option would be to give all bounty hunters the resolve buff. Doesn't have to be the same as bobas and could vary between them but as it stands now, everybody is going to have to play sith and hope they have better mods than the opposing sith.