I don't know if you've noticed this but the person who does the most 'work' often gets the better drop, however what that drop is is totally random. I know it may sound strange but I've tried it many times and it *does* work to an extent, however its not a "you'll get a pink every time" kind of thing. Say if a full party kills a boss (lets say GF) and he drops all oranges and one green, the one green more often than not goes to the person who was doing the most "work."

Make-a-sense-a?