User blog comment:SilverHexxitFights/Terraria Theorized: Why is Destroyer so easy?/@comment-25012248-20150221221123/@comment-24821572-20150225184553

Actually, even with Flairon fully boosted, you'd get around 2.5k of DPS, if all the bubbles hit. With the twins' HP, that still means around 20 seconds to kill them. From gif, Destroyer clocked out at around five seconds. That means a total DPS of 16k or thereabouts, more than five times he possible DPS of best melee weapon. My point was that Destroyer is the most cheese-able HM boss, and that proved it.

As for beating them without extreme strategy, the Destroyer is still the easiest for me. Too many segments to hit with piercing weapons.