First of all, you can't generalise because women aren't all attracted to the same sort of guy. Some women put good looks and big muscles at the top of their list (don't get me wrong though, some women think that big muscles are vile), while others prioritise qualities like a good sense of humour, confidence and intelligence.
I know that this is the most cliche' and boring advice that I can give you, but the best thing IS to just be yourself. That's the only way that you will attract the kind of woman that you want after all, someone who likes you for who you are. Quality over quantity! I can't tell you where the line between confidence and arrogance is, but I think you know that already. I'm a woman, and to me,arrogance is one of the most unattractive qualities I can think of. It's great that you have a good sense of humour, that's a thing that most women look for in a guy "someone who can make them laugh", well, to be precise, someone they can laugh with, someone who has a similar sense of humour to theirs and can laugh with them at even the stupid little things that would seem silly to most people but are funny to them. Being a good person is also really important, keep working on your soul because with everybody there's always room for improvement. But obviously, being a good person doesn't mean letting people walk all over you. Good eye contact and smiling goes a long way too. Also try to compliment them every now and again, "your new hair cut really suits you" "that's a nice coat you're wearing"....women LOVE being noticed!
I can't really think of any other pointers except to keep yourself moderately well groomed (without going overboard....many men nowadays are waaaay to vain!!), getting a nice hair cut (hair is OH SO important...hair says a lot about a person), make sure you're always nice and clean.
If I think of anything else I'll post.

Thanks, Nona! Great advice!