Help me on building the ideal squad for arena

fberbert

Help to build a dream squad. I am at level 53. As Christmas's gift yesterday I gave myself 5 loads of crystals (the largest one), spent it all in data cards and got some awesome chars, all of them at level 1 yet:

Qui Gon 5*, Leia 5*, Cad Bane 5*, Fisto 5*, Dooku 4*, Rey 4*, Vader unlocked 4*, Poggle 5*, Lando 4*, Grand Moff Tarkin 5*, Old Ben 4*, Jawa 4*, Soldier of Resistance 5*, IG-86 4*, Han Stormtrooper 4*, IG-100 4*, Luke 4*, Tie Pilot 4*.

I already have Jedi Consular 7*, Phasma 6*, Luminara 6*, Kylo 5*, Sidious 6* as my elite squad, with Poe going to 5* and Finn 5* plus Barris 4* and Chewe 5*.

Just wondering who should I upgrade and which would be the best formation with these options to play in arena battles.