Hands and feet being big or small is all relative to the size of the person. If they are proportional to the person's size, then it should not matter. What matter more is their structure, Like if the hands are manly or the feet are manly or ill-shaped or very flat, then THAT can be a turn-off.
In my personal opinion, size 7 feet in girls in the PERFECT size. For that particular reason, I do not prefer tall girls because they tend to have larger feet. Now there is nothing wrong with having larger feet but in most cases, larger feet (like size 8 or larger) have something or the other that makes them unattractive. Its almost like they need more care.