No there is a massive difference and we as hunters are losing out big and I'll show you why.
Here's a bow
http://mop.wowhead.com/item=81279
5.0 Dungeon - Heroic - Siege of Niuzao Temple - Boss 3 Loot 1 - Agi Bow
Raid Finder
Binds when picked up
Ranged Bow
6899 - 12814 Damage Speed 3.00
(3285.4 damage per second)
+283 Agility
+424 Stamina
Classes: Hunter
Requires Level 90
Item Level 463
Equip: Increases your hit rating by 189 (0.47% @ L90).
Equip: Increases your critical strike rating by 189 (0.27% @ L90).
Now here's a 2 handed staff with a bit better I level.
http://mop.wowhead.com/item=79343
Inscribed Tiger Staff
Binds to Battle.net account
Two-Hand Staff
9790 - 14686 Damage Speed 3.30
(3708.5 damage per second)
+1015 Agility
+1522 Stamina
Requires Level 90
Item Level 476
Equip: Increases your critical strike rating by 677 (0.97% @ L90).
Equip: Increases your mastery rating by 677 (0.97 @ L90).
Look at how hard we are getting fucked on our primary and secondary stats. Also yes I know the staff is a bit higher ilevel but the bow is the best one listed so far and even if a bow jumped those few levels we still wouldn't see anywhere near that high of stats on them.
*Edit since I had the wrong staff listed.*