I don't see why a griffin would be more powerful. A griffin at most is like 2.5 meters tall, part eagle, part lion. That is at most. And at least its the size of a lion. . Dragons come in basically all sizes. read more
So angels are in service to humans. But be forewarned, Iblis has many disguises. read more
Dragons have more weapons. Teeth, claws, tail, and horns. Maybe also spikes on its elbows, under its jaw, and on its wings. But the griffin has more powerful weapons. Sharp beak, and talons. Also has lion claws on its hind paws, but those are not more powerful than the dragon’s claws. Griffin is hot blooded, dragon is cold blooded. read more