Ok.
First: you're level 85, so your teams should be too.
Second: you're spreading yourself too thin with half leveling and half gearing toons. If your main concern is GW then focus on your Phoenix team, you don't need Sabine. Resistance is nice for GW too but you're a ways off from having them ready. Next for you is Empire for R2D2 then its the toons for CLS.
Third: stop investing in "useless" toons. Ones like JC should not be a priority for you right now.
Fourth: Phasma is a great default leader for any team due to the amount of bonus attacks she gives. Ive used her since this game started and im in the top 200 of my shard. So she isnt a meta killer but she can hold her own. Keep working on Kylo ren as well,his AOE saves me aganist nightsisters every battle.
Lastly, on youre arena team, you should have a taunter there. Put them in place of JC as you dont need 2 healers. And you can replace dooku with Vader, or Boba. Boba will make dealing with nightsister way easier for you
Hope this helps.
