I just saw a list which purports to be the 10 most powerful villains of Marvel comics, as an old comic book collector, I had to take issue with it. Seriously number ten was Sabertooth?
Let us consider some characters that didn't make the list.
Nastirh (the horse faced demon)
Magus (the transmode virus alien monster)
Ego, the living planet
Nimrod ( the mutant hunting sentinel from the future)
The Beyonder ( I know we'd all like to forget, but he's cannon)