I will say, Esuna AoE, is nice if you don't have the time and you are in a specific fight. But half of the important debuffs can't be Leeched anyway. Selene got straight nerfed. I'll use her from time to time, to make myself feel better. But Eos is the go to fairy, unless you know there is a fight where a raid/party wide debuff is coming and can be debuffed.

I will say this scales. I was in a dungeon and level synced, and had 2.37 recast, it went down to 2.30. When I went from 2.43 to 2.35, I was level 56, with 484 Spell Speed. So test it on your DPS friends and report back with numbers!