Oh, I'm on Xbox 360. In my opinion, I found the Asari Valkyrie to be better than the Fury because she has Tech Armor, Warp, and Annihilation field. If you have her or unlock her really give her a go.
The collector adept gets getting used to, but he's pretty good once you get him down. I'm doing the SMG mastery and now I have to do the Geth plasma SMG. N7 fury is a good character and I really like her too as well as the other characters you mentioned.