Great list, but I would have Marvel's mid-70s "monster period" more represented. Ghost Rider and Son of Satan were more super-heroic than horrific. Rather than the Beast, I would replace Hulk with Werewolf By Night.

You know, it's a wonder that in those glory days of Marvel monsters (1974-75 being the apex), Werewolf By Night and Man-Wolf never squared off (although Morbius The Living Vampire did fight both of them on separate occassions).