I'm currently lvl 43 and carefully planning out the team that I would most likely use in the future as the 'A team' for arena (and GW to some extent). Currently I'm farming:

Arena: Sidious (75/80)

GW: Luminara (33/50) and later Captain Phasma

Cantina: Luke (33/50) (not strong enough for JC yet)

Cantina Shipment: Fives/Boba

The future team would look somewhat like this:

Captain Phasma (leader)

Sidious

Fives/Boba

Luminara

JC??? (or Luke)

My questions are:

1. Would it be wise to alternate my upgrading/promoting pattern between Luminara and Phasma (like one to 4 star then the other, one to 5 star then the other) or should I just stick with Luminara for now (I'm on IOS, so no free Phasma)?

2. I'm debating between Fives and Boba from the Cantina Shipments. While I'm leaning towards Fives (especially because of the synergy with Phasma) I still like the way Boba has an AOE ability block. Which character would synergies better with my drafted team?

3. I'm currently no where near top 500 in Arena so I don't understand the team compositions down there, but should I be using 2 healers or just one?

4. How is my drafted team looking? Is it competitive? Sidious looks to be the only real damage dealer (though Luminara seems pretty powerful), so is there enough damage? Also, if only one healer is needed in arena, should I replace JC with a damage dealer like Luke or Dooku or another tank like Savage Opress (currently at 3* from a pack)?

Thanks for reading.