There were 19 nominations for Wales's most overlooked player, Dragons flanker Jason Forster pipping Scarlets number eight Alix Popham by two votes. Loose-head Jones, 27, has had an outstanding season with club and country.
He has been an ever-present for Wales, only being rested for the Fiji Test last autumn. The Neath man has also been the leading light for the Ospreys in a troubled season, helping turn around their form after taking the captaincy half-way through the season following Barry Williams's injury.
New Wales coach Gareth Jenkins last week turned to Jones to lead Wales's summer tour to Argentina.