Whats the difference between a leopard, a cheetah and jaguar?

Leopards live in Africa, and I think parts of Asia, Cheetahs live in Africa, and Jaguars live in South and central america, and possibly southwestern parts of North America, if they ever got up that far. Cheetahs are thin and light, built for extreme speed, Jaguars are smaller and stockier, built for power, and leopards are biggest. They hunt using stealth, like jaguars. Cheetahs run after their prey like dogs, except that they are the fastest animals on land. Also, their spots are all different, but I don't remember how.