However, Ireland are in second place and are the only other unbeaten side in the competition with Wales ahead on a points difference of +52, compared with Ireland's +30 and also leading on try-count by eight to seven.
Davey's boys have won their last six Six-Nations matches, since losing to last season's winners France at Ebbw Vale 13 months ago.
This season, after a virtually full-strength side had beaten New Zealand 28-7 at the Arms Park, Cardiff and an A side had lost 28-5 to England at Newbury, Wales began the Six Nations with a 27-16 win over Italy at Benevento as Gavin Henson kicked three conversions and two penalty goals and tries came from Mike Phillips, Richie Pugh and Matthew Nuthall.
They followed that by defeating England 35-9 at Neath as Gareth Swales and Nuthall scored two tries apiece with Nick Robinson kicking three conversions and three penalty goals.
Last week they scored a 25-10 win over Scotland in Inverness as Henson fired over six penalty shots and converted a try by prop and captain Paul James.
The players to take part in this season's Six Nations competition are: -
Backs - Gareth Swales, Matthew Nuthall, David Bishop, Gavin Henson, Johnny Vaughton, Nick Robinson, Mike Phillips, Will Kershaw-Naylor, Michael Hook, Scott Williams.
Forwards - Paul James (capt), Rhys Thomas, Geraint Morris, Huw Bennett, Keiran Crawford, Bryn Griffiths, Jonathan Thomas, Mark Lewis, Robin Sowden-Taylor, Chris Stamatakis, James Malpas, James Goode, Richie Pugh.
Replacements who have not appeared are - Ricky Richards, Nathan Brew (both backs); Christian Gay, Ioan Cunningham (both forwards).
England 26 France 25 (Newbury); Italy 16 Wales 27 (Benevento);
Scotland 5 Ireland 13 (Dundee); Wales 35 England 9 (Neath);
Italy 19 Ireland 30 (Viadana); France 37 Scotland 14 (Vichy);
Scotland 10 Wales 25 (Inverness); England 34 Italy 3 (Newbury);
Ireland 13 France 12 (Cork).
TOP SCORERS: Points - 32 - Gavin Henson (Wales); 30 - Andrea Marcato (Italy).
Tries - 3 - Jean-Philippe Grandcalude (France), Matthew Nuthall (Wales), Tommy Bowe (Ireland).