SOA had 2 excellent opportunities for nice catfights, but failed to deliver on both. The first would have been between Gemma and Agent Stahl from the first couple of seasons. Lots of tension between those two. The other chance was last season between Gemma and that hot sexy latino looking woman Carla. They briefly started to fight, but it was a set up by Gemma who manipulated Tara into attacking Carla from behind.
The problem with SOA is that it is too violent to have a sexy catfight. This season, it seemed that every week somebody was getting shot in the head. I've never seen so many head-shot killings before. So I have little hopes for a sexy catfight in the final season next year.