Better yet, why don't they add a loot preference screen everyone can open in the dungeon that is applies before each boss that drops gear and on that screen you put check boxes next to the gear you would like to see drop.

Then it calculates percentages based on peoples preference settings.

So if the whm wants the gloves to drop, and the sch want's the gloves to drop, and the tanks want the neckalce and chest to drop, and the dps wants some ring to drop. Then the gloves would have a 40% chance to drop, the necklace would have a 20% change to drop, the chest 20% chance, and the ring 20% chance.