WoW:API GetLootMethod

Returns the currently active loot method.
arg1 -- the loot method.("freeforall", "roundrobin", "master", "group", "needbeforegreed")
arg2 -- (only used for "master") returns the looter index, or nil. If the master looter is in your party (not always true in a raid) then it will return 0 for yourself, or >0 for another party member. If the master looter is NOT in your party it will return nil.