In principle every system which does not use bidding determines who gets loot from the current hierarchy. There are two possibilities - either the person with the highest score simply gets the item, or the point scores are in some way converted to die roll modifiers, and the actual loot distribution is determined by a roll. Ni Karma and SLS below actually differ mostly in the aspect that Ni Karma uses a die roll, while in SLS the current point leader has the first pick.