Off duty weapon?

Well I would prefer something very light and although it may not be your first choice, a glock 10mm short model would be light with a lot of power. The shells are very expensive and its not a mainliner but it sure packs a wallop for a light firearm. I just cant get with the 9s, they dont pack that much of a punch and in an emergency they dont have a lot of stopping power. Good luck in your choices, Im sure there are some better than mine but everyone has their opinion, take care. PS Yes I know my recommendation doesnt include all your criteria...sorry bout that.