Orc: Blood Fury
Increases attack power for 15 seconds and decreases healing done to you by 50% for 25 seconds. Two minutes cool-down.
Attack power is one of the main stats for a hunter and if you are careful about not needing healing you can use this every two minutes to Buy LOTRO Gold pump up your DPS.
Hardiness: Increase resistance to stun effects by 15%. This really excels in PVP, especially against rogues. It shouldn't be very necessarily in PVE though since ideally you won't be hit and stunned that often.
Command: Increases pet melee damage by 5%.
A small bonus, but still very useful to a hunter, especially a Beast Master specced one.
Axe Specialization: Increases Axe expertise by 5
This is not very useful since you aren't supposed to melee. It is a little help before you get your pet, but after level ten it is irrelevant.
Like the dwarf's gun specialization this will give you a damage boost when using a bow. This is a little better in my opinion than gun specialization since there seem to be more bow class items than guns in the game.
Overall Orcs make very good hunters and maybe the very best for horde. Except for Ax Specialization all of their abilities are excellent, especially if you want to be Beast Master Spec or engage in PVP.