What would you do with my setup? (Striker)

I farmed a lot this weekend and I got plenty of gear but not sure what's the best setup I could run.

I think I have more than enough classy striker pieces to build 6k or 9k.

I have:

House: Responsive, Deadly*

House: Destructive, Predatory

M4: Destructive, Predatory*, Ferocious

M4: Responsive, Destructive*, Determined

M4: Responsive, Unforgiving*, Fierce

2 poorly rolled Showstopper as well

(* = rerolled)

Until now, I mostly played PvE since I didn't have a competitive build against Rogues but I feel like the real End-Game is PvP.

What would you guys do with the gear that I have? PvP or PvE or Both.

PS. I play on PC and I think I have pretty good Aim.

Thanks