Some hairstyles are really nice imho, from a female pov at least. I would say that the first set requires a really nice bone structure in the face because such strict lines will only emphasize any kind of imperfections in one's face. Second set seems to be ridiculously popular now, whenever I walk past a big bank or some kind of finance related company, half of the young men seem to be walking around with something like this.
Second row, right pic - hands down the most popular hairstyle I've been seeing for the past year or so. Note that I don't consider ''normal hair'' a hairstyle, its just hair... So while many many many men walk around with just ''normal hair'', when it comes to actual styling that one is super popular. I personally like it. The right one in the bottom row looks nice too, but I think it would best suit a teenager or someone in very early 20s.