Currently you have 35 Agi listed as an upgrade to Savagery on a 2H weapon for a hunter.
This is dependant on spec, in order to make such an assumtion spec checks would need to be made.
If the hunter has deep survival talents (Lightning Reflexes [+15% agi] & Expose weakness) then 35 agi is superior, but if you use the cookie cutter 41/20 BM build Savagery pulls out ahead. Im an rather uncertain about MM builds since they feature very rarely in PVE situations compared to 41/20/0 or 0/20/41 - but i would imagine that Savagery is slightly ahead since you dont get the extra Agi scaling that Survival gives.
Will update if i see anymore issues with hunter enchanting
Update: The same situation is true for the enchanting of gloves as a hunter - For Survival +15 Agi is much better but for BM (& mm?) +26 AP is the enchant of choice, all beit the margin is very very small, but it is as it is.
There is no spec for which Savagery is better than Major Agility. The margin varies depending on spec, but even with full Master Marksman and no Combat Experience, it takes unattainably high crit and hilariously low AP to make Savagery better than Major Agility.