BM/MM - for both specs it is recommended to go PL and Sentinel. Dark Ranger is an underpowered mess. Thank you Blizzard.
I prefer dr gameplay but im running sentinel. The issue is rapid fire is your setup for streamline proc so you waste the aoe lunar storm if you dont really want to open with it. Its that or pop trueshot and wait out a horrible 3 second aimshot with no streamline. It doesnt feel good