I'm finding the nightsister team to be really fun. Granted my team is far from strong but I have 4* talzin with one zeta, daka, ventress, talia and accolite. I think my team's power is right over 60,000 or something like that.
Anyway - I've been finding that using specials to inflict plague on enemies and reviving your fallen team members compounds your attacks so much it's so fun. I focus more on keeping my team alive and reviving more than the battle itself and come out pretty well. So many different ways to revive people with this team, it's a ton of fun.