I have run multiple combinations of all clones and Ani, sometimes subbed in AS, Phasma or ST Han and I say for GW Ani L, Rex, Echo, CS and Cody has worked best as I am able to clear 9-12 nodes just using those 5 toons.
In arena I prefer Rex or Ani lead, but that makes Cody go down quite fast, however, if you lead Cody having all other four clones is nice, it's fun seeing a Rey only removing 12k protection with a flurry because Cody has 80% armour :p
I have come to realise though that no matter what, I always drop more than I would like if I use more than 2 clones so I'm back so other comps in arena.
For raid a full clone team is pretty decent, their all modded for arena or GW so not too much pot on Fives, Rex and CS but still manage to get 1.4 mil because they take so many turns and 212th gets full CD reduction â…• times, otherwise it's a 1 or 2 turn CD left