Ok, I'll assume there are other job changes coming and this was as much detail as you wanted to fit in 1 post.

The ranger changes, for the most part good. I don't know any rangers that really cared that much about bounty shot, but maybe making it more usable... but the rest is very much a yes, please...

Dark-very good for end-game, but I think it throws balance at lower levels right out the window, as if anyone cares.

Healing enmity down-will fundamentally change the way those jobs are played, but not necessarily a bad thing there. Dependent of course on the degree of reduction.

Pup-the attachments look decent, and it breaths some life into the lesser-used frames, although I'll have to see in terms of slots used. The big question will be attainment, if the means of getting them is too onerous they may mean nothing, we'll see.