To me, out of those 5 Langford Greb and Robinson are interchangeable. Could a case be made for Armstrong at #1?
I personally have my top 5 as being robinson, amstrong, greb, langford and charles and i'm happy with that, however i'd only insist on robinson being there, to many different ways of making a list, for instance a lot of people like to rate on what they have seen with there own eyes, so i certainly couldn't argue that greb and langford should be locks though i think if your rate on resume they would be.
