User blog comment:ImperiexSeed/The oldest being, archangel or leviathan?/@comment-5961531-20130826230216

Death clearly stated Leviathans are older than Angels, and although Archangels are the oldest Angels, they're still just a type of Angel.

Archangels are FAAAR more powerful than Leviathans, however, Edgar easily killed those two regular Angels in season 7 by blocking their power. Now, i know most people would say a regular Angel is nothing compared to an Archangel, and i completely agree, but Archangels are still just another type of Angel, and if Leviathans can literally block an Angels power, then i would think they could stop an Archangel using their power as well.