He also stated that both Marvel and DC seemed to reuse the same back stories for characters much too often too. and in both Marvel and DC too many hero's were millionaires in the beginning. (Wasp, Stark, Batman, Green Arrow, Iron Fist, etc.. with Black Panther being the richest of them all and Stark/Batman in a very distant second place) Marvel had more hero's backstory involved in scientific mishaps - nature based - (Spiderman, Hulk, The Lizard, Capt. America, etc..) because it made more sense that a freak accident would give you better powers than anything you could build or purchase with money. Marvel also had more genius level scientist on board as well. T'Challa, Reed, Doom, Pym, etc..
Speaking of Batman, he said that Batman/Punisher/Deadpool was really the only heros that should ever be drawn with an utility belt or storage pouches on the costume. (Punisher and 'Pool simply because it makes sense that is where they would carry spare ammo.) He said "how many time have you seen Captain America remove something from his pouch?"
He said the biggest compliment DC ever paid him was by not creating a character along the lines of Spiderman. Even though Marvel has created characters that were a blatant rip off of Superman (Hyperion, Sentry). He said that they never caught on because Marvel attempted to overcome Superman's flaw with them. He said Superman's biggest flaw was that he was too perfect. Other than magic, some forms of mind control and Krptonite, he had no real weakness. He said "how do you create suspense in readers with a character that you know can't be hurt or defeated?"
He even admitted that Superman could beat Hulk in a fight. He said it were a contest of lifting heavy objects, maybe Hulk would win if he reached a level of rage he has never approached. But in a throw down fight, Superman would win easily by simply flying Hulk up and throwing him into space. He said a more thrilling match up would be Shazam vs Thor.