The best strategy I've seen so far is

Tank harasses the healer
Dps team pound the ranged dps, followed by the melee
Whm sleeps tank, and melee dps

Once the tank and melee are out of the way the whm is open to heal

Once the ranged dps is down the healer is less likely to be pounded by ranged interrupts leaving only melee who generally have to be close enough to be hit by fluid aura

All the while the other healer is scrambling to either heal or simply survive while being hammered with a flood of stuns or interrupts

But good luck finding a party willing to flow with that...