If I could eliminate one emotion from the world, would I?

No. Some may say that they would eliminate sadness or anger, the "negative" emotions, but I think that one needs to experience "negative" emotions before one can experience "positive" emotions and vice versa. If sadness was elimated, no one would ever experience true happiness. If hate was elimated, no one would feel love. Anyway, the emotions that we experience are probably not actual things, but "multiplier"s used by the subconscious to emphasise certain events or facts that are actually not real ("Emotion is the enemy of Truth").