Waddle believes there are question marks over Everton's Ross Barkley and Leicester City's Danny Drinkwater.
The Dutch striker has had an excellent season with AZ Alkmaar.
Benitez agreed a new deal at Newcastle United this week.
The Owls have reached the Championship play-off final.
The Everton and Tottenham Hotspur youngsters are both competing for a starting role.
Rangers boss Mark Warburton's recent new recruit at Ibrox has denied quotes attributed to him in 2012.
The former forward believes Southampton's Ryan Bertrand is ahead of Tottenham Hotspur's Danny Rose.
The Spaniard was unable to keep the Magpies in the Premier League.
The Leicester City and Tottenham Hotspur stars are competing for a place in England's midfield.
Sheffield Wednesday star Barry Bannan played on loan at Leeds United from Aston Villa in 2011.
George Osborne has been accused by a Conservative MP of plotting to break the law in order to “bludgeon” people into voting in favour of staying in the EU.
Meeting rules laid down in Brussels on how government deals with the private sector costs Whitehall more than £1.5bn a year, the leave campaign has claimed.