I'd vote for auto . I think revolvers are probably good for home defense , but for all out combat revolvers are imo too slow. Most of the time they are heavier in weight , and the DA trigger makes speed shooting very difficult. Also magazines can be loaded faster , as opposed to a speed loader . It's probably rare to have
a sitiuation where you would even need an auto in combat , but
if you were being robbed in a store by a few guys with guns , an auto pistol imo would be much more valuable.