What makes you like a character? Trends and Patterns amoung your favourites?

So I was wondering what about a character makes you like them.

People have different reasons, be it subconscious or not. Are your favourite characters the more relateable ones? The type of person you'd like to become? The type of person you'd have a crush on? The character that makes you laugh/cry the most? How about patterns or traits that happen to be common amoung all your favourite characters?

I'm not wondering much on what you like about characters but rather why :)