Who is the best? Cristiano Ronaldo or Lionel Messi? Will Neymar overtake them?

everyone argues about who is the best player  Cristiano Ronaldo or Lionel Messi?  But is Messi even the best south american player?  There are those (most Brazilian lol) that claim that Neymar is as good if not better than Messi ALREADY!!  Wat do you guys think?  Personally I think Neymar has been overhyped, but after having watched this video http://www.vingle.net/posts/10963-Messi-contra-Neymar-contra-Cristiano-Ronaldo  I don't know.  What do you all think?