Lol! I've been in a few discussions about this recently.
So, I definitely have had and still have guys that are friends..... just friends. But, I think the difference is if you have a friend group. I have guys that are friends within a group of friends we hang out a lot but I don't date them. But, I think it may be a bit trickier if it is just one on one friends. Yes, I certainly think you can be 'just friends' but it usually causes someone to get 'fuzzy' in their feelings one on one. But, I do know within a group girls and guys can be great friends!