One of those things is not like the others. I mean, fair to dislike all three ... just saying.
For me ... I don't hate them, but I'd probably say Dr. Strange and Dr. Fate. I appreciate the places both hold in their respective universes, but whenever I tried reading stories focused with them at the center ... just kinda boring, to me. And I can't really say why, because I can buy Mr. Fantastic or Mr. Terrific super-science stuff easily enough ... don't know why the magic stuff leaves me cold, but it just does.