Chim works best for me but right now I'm making do without Reaper and FOTF. My starting 5 are:
Biggs
Geo Soldier
Vader
TFP
Maul
With a bench of:
Boba - Slave I
Jedi Consular
Wedge
And some random high power rating phoenix ship.
I take 1st usually and drop to like 17-24 ish in a mostly Chim arena. My bench is great because I can use Boba if I've landed a lot of target locks, JC if I need to do a targeted heal or get Vader to hit a Tie Fighter, and Wedge if I need to snipe a single target locked enemy. I'm replacing the Phoenix ship with Reaper when I get it and Shore/DT to 7*.
Geo Soldier is underrated by the way. His assist can be deadly after Chim buffs my team up.
Edit: My strat with Chim is to ALWAYS use his buff/Debuff move 1st no matter what. Gotta make the enemy do less damage to survive, especially with FOTFs around.
