Is it normal that i get this impression from these kinds of men?

Now, I'm not saying this is always true; this just an impression that I get. Sorry if I'm generalizing here.

Men who prefer/are fine with dating intelligent women, and men who believe in equality strike me as more confident, more masculine, and sure of themselves.

They do not feel intimidated or threatened by the concept of equality, because they don't have any reason to be. The confident man knows that he's still plenty a man whether his girlfriend is better than him at one thing or another.

There's usually something one person is better than another at anyway.

Straying away from referring specifically to men, I believe the saying, "Misery loves company."

When a person constantly feels the need to assert their dominance over others, or is demeaning, I can't help but see them as insecure.

A strong, confident person doesn't need to degrade others, and they're not too much of an ass to admit their mistakes, or acknowledge the merits of others.

They don't always have to feel superior, because they know that they're worth it regardless.

Some people are a little like rotten crabs sitting on a sunny beach. They have a tough exterior, but inside they're soft and stinking. The crabs sit in the open all day long, greedily sucking up the sun's hottest rays. However, instead of looking attractive under the spotlight, their insides simply decay more.

There are some people like mangoes as well- the outside is soft and often sweet, with some tartness. However, their cores are solid and strong.

That was a kind of weird analogy, but this is just the way I see things.