I feel like I need to work a bit harder to keep the enmity bars down, closer to pre-2.1 than after it, but so far I've just been telling myself it's because myth is uncapped so the DPS are just overall better geared.

Or maybe it is the lag.

I will say though, that Flash is horrid for AoE hate. I have a far easier time holding packs on my ilvl84 War with base Bravura than my ilvl90 Pld with Curtana Zenith.