I go for the classic 0/21/30. Keep in my that I have a PvE build and frame of style.
Your build, my opinion.
Effiency: waste of points, basically just one extra sting; one sting is normally not going to make that much of a difference
Barrage: ya helps Multi-shot but cant use it sometimes in instances, or breaks sheeps/stuns/traps; and honestly how often are you called in for Volley when Mages or Warlocks can AoE?!?!
Your Survival is a good build for PvP or PvE. Might look into Entrapment, Killer Instinct and Lightening Reflexes.
My build.
Marksmanship
Improved Concussion 5/5: comes in handy
Lethal and Mortal Shots 5/5: add to your crit % and dmg
Aimed shot: for dmg
Scatter shot: got for interrupts/stuns when needed
The other four points put on Improved Hunter's mark and/or Hawk Eye, cant remember /shrug. Play around with it.
Survival (this build is to keep ppl away and cause some dmg.)
Monster Slaying 3/3: for dmg when grinding
Humanoid Slaying 2/3: does not effect PvP, just a filler for me
Deflection 5/5: Parry is good.
Entrapment 5/5: helps keep ppl and mobs in range
Trap Efficieny 2/2: I use traps alot, might as well make then more effective (w/ frost in large mob group, e.g Scholo, i can get entrapment to proc maybe 3x on just one frost trap; good for CC)
Deterrence: dont get in much melee but good to have when I do.
Counterattack:[/b] same as deterrence, good CC as well in instance and PvP to get into range; like another scatter shot to some degree
Killer Instinct 3/3: helps with crits
Lightening Reflexes 5/5: mmm, 15% is very nice, adds to dodge, crit % and dmg, and increases DPS
(e.g. if you simply have 400 agi base, 15% is 60, that is basically 2x BSH with +15 agi)
Once again this is all just my opinion and fits my style.
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70 Draenei Shaman (Opusdeus ~ Eldre'Thalas)
70 Night Elf Hunter (Opusdei ~ Eldre'Thalas)
70 Night Elf Druid (Mightypoo ~ Eldre'Thalas)
70 Dwarf Paladin (Lefty ~ Eldre'Thalas)
70 Human Rogue (Tadi ~ Eldre'Thalas)
63 Gnome Warlock (Mcadoo ~ Eldre'Thalas)