I run a full Resistance team with G11 and Zeta on both Finn and Rey. I can't touch the Zaul teams, and I always go first. My Poe is at 274 speed, and not much can touch that. But the Zaul teams are constantly stealthing and cleansing, so the expose engine never gets going for me.
zQGJ is hard but beatable, because I waste Poe's exposes on clearing the foresight on the team.
Zader is easy, unless I get blanked on exposes. If I get 3 or more exposes, the Zader team will likely never even move.
Teams with GK or Rex, can be annoying, but normally beaten. Again, losing the ability to get the expose engine going can be a loss in arena. Take out Rex if you can, before he gets extra tm from crits.
Most other teams are easy, but I don't see most other teams as I am normally in the top 20 at payout. I am not a whale and am not running a meta team, so I feel pretty good about that. I did once take first with this resistance team before my arena became infested with Zaul.
I have a G11 B2 but I need to work on my Sid. I am planning on trying zFinn (l) Poe, RT, Sid, and either B2 or Rey. Rey's Zeta really does come in handy for the B2's, Dooku's, 5's, etc., that can ruin your day if they constantly counter.