William vs fatherhood
William wasn't very present and mixes up his two oldest sons frequently. He still does even in their present despite them looking different enough. Very obviously doesn't pay much attention to any of them unless approached by 2 specific people.
Azrael and Mike wear a rope on their wrist with their colours to help distinguish them better when they aren't wearing clothes with their colour.
Despite Azrael being the most well behaved out of the 5, Azrael never actually told William which one he was for funsies. He's also very quiet and doesn't really speak or actively engage with others unless asked directly.
William likes him the most on his own because of how quiet and behaved he is.
William is not a good father, business partner or any other partner