I MIGHT understand because I don't watch/read a lot of shoujo. Not sure why, it's probably the content.

If it's action, I like a main to have a little strong will, and I have trouble associating action and bravery with too much kids, school, super squeaky voices, and harem/ecchi (?). Also, really big eyes like on Lucky Star.

I loved Sailor Moon though. Trying to get through the comic.

There's Neon Genesis EVA, who has a MC infamous for his lack of courage. Still, he enters the pilot seat and he tries. I think he's realistic. He can cower but he can also exert himself.