Rebuscando en Internet, como quien no quiere la cosa encontre una página de blogs dedicados básicamente a los hunters (Huntards que le dicen algunos ;) )
Entre todo lo que había encontre un listado simpático de las gemas que le convienen a un hunter. La lista está en inglés, pero creo que con dos dedos de frente se entiende sin ningún problema.
Reds
Delicate Crimson Spinel +10 agility
Delicate Living Ruby +8 agility,
Delicate Blood Garnet + 6 agility,
Blues
Nothing. No pure-blues for hunters.
Yellows
These are your pure +Hit and +Crit gems. Just say no.
Purples (Fit Red or Blue)
Shifting Shadowsong Amethyst +5 agility and +7 stamina
Shifting Nightseye + 4 agility and +6 stamina
Shifting Shadow Draenite + 3 agility and +4 stamina
Greens (Fit Yellow or Blue)
These are "+Crit and Stamina" gems. Just say no, unless you're a MM/SV PvPer.
Orange (Fit Red or Yellow)
Glinting Fire Opal +5 agility and +4 hit rating, (nothing adds to +hit but +hit and if you don't have enough, get it with gems).
Inscribed Ornate Topaz +10 attack power and +5 crit, (not for BM hunters, but MM/SV's will love these types).
Pristine Fire Opal +10 attack power and +4 hit, (again, MM/SV who need +hit will take one of these in a heartbeat).
Wicked Pyrestone +10 attack power and +5 crit, (same thing as an Inscribed Ornate Topaz).
Glinting Noble Topaz +4 agility and +4 hit
Unstable Citrine +8 attack power and +4 crit
Wicked Noble Topaz +8 attack power and +4 crit
Glinting Flame Spessarite +3 agility and +3 hit
Wicked Flame Spessarite + 6 attack power and +3 crit
Meta
Relentless Earthstorm Diamond +12 agility and +3% increased crit strike damage
Swift Skyfire Diamond +24 attack power and minor run speed increase, the MM/SV PvP'ers delight
Swift Windfire Diamond +20 attack power and minor run speed increase
* Thundering Skyfire Diamond Chance to Increase Melee/Ranged Attack Speed, (we are listing it to specifically exclude it from our list; it procs neither often enough nor long enough to recommend it over the Relentless Earthstorm Diamond).
Loiosh (Kalecgos): Huntard lvl 67, leveleando.
Loiosh (warr tanke): Guildless y disfrutando los heroicos con PUGs.
PD. Sería interesante si alguien encontrara o posteara algo similar para las demás clases.