OMG....Poe or "fives".....

I am so torn on this decision. I am sitting on close to 1200 cantina credits because I simply can't decide. I have both unlocked at 3* and in lvl5 gear. Both are great, but I don't feel like I have room to utilize both of them for pvp. The rest of my roster is Sid, lumi, JC, Luke. Any thoughts?