Coding a new party system is a [EDIT]

[William]

The leader can control the loot (group loot, master loot) and change the roll type ( uncommon, rare, etc) and whatever else you set. If you want to set up a specific party for an instance, then you should be in control of who's in it, right? Dont assume everyone's friends with their party members.

Eh, whos been talking about being able to control the loot? He spoke about "what happens if the leader leaves, when the group disbands, when someone declines". That's pretty easy to control if you skip the leader position.