Who to zeta next

you definitely need a speed arrow on drev, first off. your mods need work, you have non-matching sets and multiple accuracy arrows, which are basically worthless. I would google/youtube a mod guide (sorry, don't have a link to one)

I would work on Sith empire, (or maybe Galactic Republic as you have a good start on them), just use brood alpha instead of sthtroop bc sthtroop isn't starred or geared. gmy will work in that squad but you need also zetas on revan. your gmy also has an accuracy arrow.

if you focus on one arena team and get your best mods on them you will see a big improvement imo, even if you stick with jkr for now. you have a good jkr squad, just the mods are messed up. you need all health on jolee too

glgl