Hatchet is great for leveling. I’ve paired it with SnS and WH. Fun times. (Personally for fun I went back to a SnS WH setup because I like tanking. Burned out on ranged for some reason.)
My subjective vote: SnS + Hatchet
PvP: I wouldn’t even bother building an endgame PvP spec - until you no longer have to ask “what build is good for PvP” because by the time PvP will matter for your situation, you will know. OPR is a great testing ground for this so just focus on decent GS to scale enough to learn some things.