WHo's the most intelligent? Reed Richards by a mile. But he isn't smarter in every way than the others. Doom is the best schemer, Iron Man is the best engineer, and Batman is the best at thinking on his feet as well as the most analytical. When it comes to Batman vs Reed or Doom you have to ask yourself: who's smarter? Moriarty or Holmes? Well like Doom and Richards Moriarty was the more scientifically accomplished and was better at planning but like Holmes Batman is the better thinker and the more observant. Doom's ego and Reed's absent-mindedness cause them to overlook things that Batman takes note of.