Completely situational and often depends on the prey. If they're really into it and let me indulge, I'd end up eating the feet first. Just happily savoring their soles and toes before I get to gulping them down~

On the flip side, if it's a squirmy prey or the occasional unwilling one, I'd go head first. Get to feel them really wiggle about on the way down, and get to end off with sucking over their feet while feeling them rounding out my belly~