Leader ability sidious or Phasma ?

Wow i didnt expect this deep a discussion. Thanks for the input guys.I am using phasma right now and i like what she does.If i dont use her for leader I might aswell kick her and get a better support char.So I try phasma for another week or so before deciding.Lumi should be 7* by then so i can either try to build poggle or improve phasma then depending on the results