Mmm...
1: Zeta Vader lead
2: Get better mods
3: Gear 11 Palp, Boba, ETP
4: Smash every Rebel team you see.
Don't get me wrong, its stupid how many godly Rebels they have released, but...Properly modded Empire can smash every aspect of the game. Zeta Vader has been my lead in arena since it was possible and I also use it in rancor raid (and that clears all the way to phase 3). Its also pretty nice in tank raid P3.
In short? Rebels are the "easy" way to win. Empire is the advanced option, requiring more limited characters and far better mods. Once you have them however? Whole different game. Also, rebels get mocked by GK/Barriss/5s, while Empire moves them consistently.
