Diablo III: Reaper of Souls

EDIT:
nerf MISSING RARE NAME

So fucking broken m8, you don't even know.

Which gem feel like it adds more damage, the +elite damage gem, or the spread AIDs gem? Alternatively, which one would clear bounties quicker?

Depending on how you're clearing the bounties, Wreath of Lightning is pretty good if you're just running past all the trash to the objective. Boon of the Hoarder is less good for this since it requires an actual kill to get gold, but if you're on lower difficulties, or just need gold, it's a solid choice.