I have two AMV suggestions. Both animes have few videos, so I am not suggesting something there are already 20+ videos using the sames scenes.
First: "RIN ~Daughters of Mnemosyne~" paired with Queen's "Who Wants to Live Forever". Rin is a story about immortals, and I really enjoyed the way somethings changed over the decades in the anime while other things stayed the same.
Second: "Deadman Wonderland" paired with The Union Underground's "Turn Me on 'Mr. Deadman'". I am actually surprise that nobody made this yet, it seemed pretty obvious why this goes together. Title aside the rest of the song would pair well with this anime.
