Ok, ill throw my hat into the ring here. My girlfriend has been playing solely lady j, and her list of choice is:
Lady j
Judge
3x death marshals
Austringer
Scales of justice
If I had any swap to recommend it would be judge for nino. I just can't really put into words how good nino is. He wants masks for trigger happy, but otherwise functions nicely without needing to cheat fate (much).
I find the peacekeeper to be lacking...at least until hoffman comes out and makes him more reliable. Arachnid is nice for the odd severe terrain-heavy setup, but otherwise is kinda meh.
Anyways, she kicks quite a bit of butt in our local meta with the above list.