Amenadiel is actually one of the strongest angels, because he is of one of the highest rankings. He is able to hold his own against Lucifer, however, he did have the upper hand because Lucifer didn't have his wings.
Even when he lost his powers he was able to easily beat
humans in a fight. Amenadiel is stronger than Uriel, and the only reason why he couldn't beat Lucifer is because Lucifer is of a higher ranking, even though he is technically a fallen angel.