All my Giants want 2300 favor now, and I'm trying to learn the new skills faster by donating. By earning and spending an Emblem, I get 1.5 hours off the learning time, but if I collect just under 2300 favor points, I get 3.5 hours off the learning time.
So -- the Emblem (for me) is worth less than half the learning discount of just short of earning an emblem.
Is this a feature or a bug?