I thought I would throw out my team for people to take a look at. In no way is this the "best" team going around, but I use it to keep in the top 50 on my server. I fluctuate from 44 to 24 depending upon time of the cycle. Havent been able to hold a position in the teens. For disclosure; I have bought the Dooku pack and the 21 Day Shipment pack. All team members are currently level 48.
Count Dooku (3*, VI)
Chewbacca (4*, VI)
Talia (4*, VI)
Luke (4*, VI)
Darth Sidious (4*, VI)
The team is a pretty fast and hard hitting unit. Dooku, Luke and Sidious generally get the first shots off and use Lightning / Snipe / Heal Block Strike to either destroy or heavily injure either the weakest member of the opponents team or the healer (consular).
Following that on the first turn of Chewbacca I dont taunt, I use his normal attack with chance to eliminate turn meter and keep pummelling down what I can. The Talia special attack is huge, with one of the biggest Special Attack stats and Special Attack crits in the game.
My thoughts would be to swap out Chewbacce for Resistance Pilot, but pretty sure that would get pumelled on defence.
Happy to take thoughts and questions.