The problem I felt that plagued action-feature figures was that it often still came at the cost of additional articulation. That is what it seemed like to me anyway.
You slap ball/socket knees on Mace Windu, or the Anakins and Obi-Wans, and I'd have been a little more pleased with collection 1 this go-round. Plus loose arm joints tended to be right on the tails of an action feature.
#6 Clone's the ideal action-feature-laden figure in my book. Great articulation, great sculpt, and a feature you can't see but which works for what it was supposed to do. I liked the Super Battledroid from AOTC for that reason. Short of more arm articulation, I would've totally been happy with that figure. I love the exploding feature, the battledamaged chest... Those were neat ideas.
Drop that lame-ass extra "world devastator arm" he had and give his regular right arm a swivel joint at the forearm, and I'd have bought a lot more SBD's.