I find I do best when I take individuals as individuals. I dated a guy a while back who tried to hard to be macho, and it just wasn't him. Sometimes I tend to bring that out in guys since I'm not exactly a delicate flower myself. That being said, I like a nice mix of at least more masculine than I have to be to survive at work, with a little bit of "It's okay to actually have emotions" mixed in.
My personal choices, though, and anyone that doesn't fit into this scenario of mine is perfectly fine as a human, just not a good partner for me.