Phasma 18%

Well, right now, im at position 302 only (but got my 5 tries, so no clue, where i will end today) ... i use an alt-team, because before march-update, the arena power (last team that won in arena) was an indicator for how strong your GW-matching is ... so i decided to use low-power-chars only ... every Arena char is at level 62 or 63 and has 6 stars only (mostly even 100/100 but not promoted), except RG, who is at 4* only atm.
My arena team is: Phasma (6* 62), GS (6* 63), IG-86 (6* 62), Poggle (6* 63) and RG (4* 62) ... Gear and abilities maxed at their level (basic at level 6 for example, level 7 requires char level 66). im surrendered by full level 70's, so i honestly dont even know, why im still close to the top 300. Team-power is 21.317 (my target was to keep it under 22k)
Before RG, i used Dooku, but Dooku is in my main-team, so i had to look for a replacement. The devs changed RG that time and i thought, his basic + auto-taunt would do a great work. Now im still farming RG on 2 hard nodes.

JC in Arena, ya, your server has to be young! ;) QGJ is a very good choice for arena as leader or lead by Dooku/Lumi (if Dooku is too low), thats what currently rules Arena ... add some other fast and hard hitting chars like GS, Rey and a Tank, who protects your "glass canons" (Poe or RG) and you are pretty fine.

Woah ... just tried 2 Arena battles ... my chars dont stand a single chance today ... i dont know why, but today, my chars throw cotton balls at their enemies, while they kill them like level 40 chars ... a Dooku for example made 4k damage with his basic (without bonus attack, nor special, just 1 single basic attack) ... i got used to see around 2k (+/- 200) but never 4k (no crit, just regluar) ... guess, my arena-time ends now.