I guess anything is better than some Animal House/"College" poster held up by thumbtacks or tape, so just go with what you like and make sure it adds something to your space, and is somewhat... more
I'm a fan of more contemporary furniture, so a guy with the lighter wood, more antique dressers might come off a little older than he intends to, in my opinion.
A guy who has a nice bed appears to have his stuff together more than a guy who has a mattress on the floor. But in the end, if you're a single man and your bed is made, I would not judge you.
All in all, I don't expect a man to have coordinated bedding - so, really, you doing well if you have any sort of theme in your room at all, in my book.
