I don't know why you guys are fighting about which strat is better considering that both are perfectly viable and I've seen guilds capable of killing it either way. My guild uses the Hisek strat -- requires more people to not derp on the dance but lets you spend more time cleaving and DPSing him down. But I've also seen more guilds do the Ka'roz strat just fine. That said, my guild is in top rankings on both speed and execution for the fight, so clearly the Hisek strat works just fine.