I currently run a Zaul lead. I have zsavage, zsid, DN, EP. I have DN at 5stars almost gear XI. My shard has almost 50% Rex and GK leads. Overnight my sith team will fall to 15-20. I am considering...
I switched to nihilus lead with palp, Sass, dooku, and Gk it holds just as well as my old zaul team did. The real advantage is it stomps though Rex leads and is stout enough to absorb the intial barrage of a zaul team and easily beats them also. A few Rex leads on my shard complain about how hard this team is to beat.