Don't make the mistake of thinking mice don't fight. The young ones may be a bit timid, but when you have to start feeding adult mice they can be ferocious little buggers just like rats. If you end up having to feed live, make sure you closely supervise it until the prey is dead, and be ready to use the tongs to restrain the preys mouth, if need be, during constriction. I think the best thing about rats is they get bigger so you won't end up having to feed multiple mice as the snake gets bigger. For me, feeding f/t is better, because it's easier to keep a consistent supply of appropriate sized rats on hand, rather than hoping the pet store has the size I need...