I actually think that the DC universe could *not* be cooler than the Marvel universe, and that's part of their problem.
Batman is cool, I'll give them that, but the other ones.. Not so much. I mean there's always some cheesiness when it comes to superheroes, but Marvel gets around that by making it so that the superpowers tend to be also a curse or a downside for the characters and they have real life issues that kind of ground them in a way, making them more like one of us. Relatable.
DC on the other hand has Super-Duper Man, an invincible being from another world and a beacon of righteousness for us all! Wonder Woman, with her magic bracelets that can stop bullets! Green lantern, with his magic ring and the beautiful power of imagination! Aquaman, the prince of the depths, who talks to fish! Now with cooler looks because of casting the manliest man there is to offset the silliness!
Do you see what I mean? DC characters tend to be like these prototype heroes from an age that doesn't really click with the contemporary world. Give Warner Brothers a break, this is what they're trying to work with.
That's not true. It's a common misconception used to discredit DC characters. There movies could be better written but the actual characters on written page are pretty similar.
For decades, Marvel characters were supposed to be relateable everyman characters while DC was full of billionaires and gods and aliens with special abilities. Tony Stark? Thor? Silver Surfer?
Marvel Characters were written with real world problems but DC characters have been written the same since at least the 70s. Hell, half the time the people who created the characters or wrote for Marvel also wrote for DC! The only major difference is that a lot (not all of the time) of the time, DC characters are loved by the public while Marvel characters are feared. And even then there's tons of examples that contradict even that.