Well I just tested out Spotter, and it's pretty much useless. No point in taking this trait ever again.
I've also tested out OWP and Leader of the Pack, very underwhelming. I don't even need to look at ARC dps to see how badly this has been nerfed. Pretty much no point in ever taking this GM trait again, as for OWP itself? I have to say it's going to be hard to slot now itself.. unfortunately there isn't much else to pick for DPS in PvE but for PvP this sort of kills the spec. WvW it remains sorta useful, but clearly nerfed hard and when I pick it; it will be for MEH reasons more than anything else.
I haven't dug into Hammer changes yet, but what I desire in Hammer is some frikkin SMASH sound fx and sensation of IMPACT when I hit with it. Right now it feels like I'm mostly doing a baton dance.