Good non superhero Frank Miller books

I've read a lot of Frank Miller he's one of the best(and one of the most overrated) writers in comic book history, but most people just know him from his batman stuff. I read his Daredevil stuff and i enjoyed it, but i wanted to know if his non superhero stuff like Ronin,300, and Sin City is any good. I keep hearing mixed reviews from critics and comic book fans and I wanted to know if those books are worth the buy. Because i dont want to spend money on a bad book.

It's based on opinion, I liked SIn City, you may not. Pop into a comic book shop and have a quick flick or download it.

I enjoyed 300 a lot.... very Frank Miller-y.

At a minimum pick up the first Sin City trade, read it, then go from there.....