Just adding on to this, Marvel’s peak for comics were the 70’s and 80’s. DC’s peak is a bit more modern from 90’s to today.
The thing is, Marvel’s characters have always looked good, but when DC isn’t dark and gritty, their characters are sort of outlandish. For example, before batman was a bat to intimate people, he was a bat for absolutely no reason at all. The Flash is an exception where dark and gritty isn’t the best feel (his modern comics aren’t really dark now days anyway) but his character was faced with such ridiculous enemies that he really went no where back in the day.