All depends on what characteristics you think are needed by a good pilot I guess. I admire Quentin Smith for the flying he's done, but is he as good with regards to flying skills as others? Probably Not. Now that's not so say I'd like to organise a round the world flight! Arguably I suppose the all round skills needed to safely conduct a trip like that are far more important than the ability to hold a perfect hover or fly by the numbers.
Best (as in most accurate) flying I've seen though was Leon Smith out of Wycombe Air Park. Never seen someone hand-fly so accurately on instruments!