Mr Morgan congratulated "ruthless" Wales and said the Grand Slam was "even better than 2005!"
Henson has not been the same player since winning the Grand Slam with Wales in 2005.
Ruddock won the Grand Slam with Wales in 2005 before leaving a year later.
That includes the Grand Slam year of 2005 when they conceded only 84 points.
He received it in front of 14, 000 people at the Grand Slam event in Paris on Saturday.
Despite O'Driscoll leading Ireland to the Grand Slam, his team-mate Paul O'Connell appears to be the favourite.
The victory has put Wales on course for the Grand Slam in Cardiff against France next weekend.
Thousands turned out for a similar event when Wales beat Ireland in the Grand Slam decider of 2005.
But Henson has not played at international level for almost a year, against France in the Grand Slam decider.
"We've won the Grand Slam, but don't want to stop there, " said Gatland.
And Hastings has tipped O'Driscoll to pip his Irish team-mate after leading Ireland to the Grand Slam on Saturday.
Wales took the Grand Slam last year, their second in four seasons, against expectations in Gatland's first year in charge.
As it turns out, there are only a few places in the country where you have a reasonable chance at the Grand Slam.
The Grand Slam committee administrator has opened an investigation to determine whether Williams' behaviour should be considered a "major offence".
The 32-year-old quit Test rugby after the 2007 World Cup but returned to the fold to help Wales win the Grand Slam.
England could finish as Six Nations runners-up if they beat Scotland and Ireland win the Grand Slam by defeating Wales in Cardiff.
First Minister Rhodri Morgan led tributes to the team saying the Grand Slam would "do so much for Wales as a small country".
The draw ends France's hopes of the grand slam this season and leaves them a point adrift of leaders Wales after three games.
Gethin Jenkins took on the role that day as Wales denied England the Grand Slam and retained the trophy it had won in 2012.
Sexton missed the conversion but with less than half an hour on the clock England's dreams of the Grand Slam were as good as over.
Williams, 33, will equal Colin Charvis' 94-cap record for a Wales forward when he runs out at the Millennium Stadium against the Grand Slam-chasing French.
BBC: Wales boss Gatland warns Martyn Williams and Ryan Jones
Italy didn't do too badly considering their resources and France were unrecognisable in the autumn from the side that won the Grand Slam last season.
They include rejuvenated Wasps hooker Phil Greening, who won the last of his 24 caps three years ago in the Grand Slam mishap in Ireland.
BBC: SPORT | Rugby Union | Internationals | Corry out to cement England spot
"One week I was beating France and winning the Grand Slam and the following week was the injury, " said Phillips, who has won 33 caps.
He too praised Welsh Olympians and the Grand Slam-winning rugby team.
Many had hoped the popular Belgian, affectionately known as "Aussie Kim", would sign off from the grand slam with the trophy in her hands on Saturday.
Through the Grand Slam fortnight, he has encouraged her to take one round at a time rather than looking too far forward in the 128-strong draw.
The former Scarlet played a key role in the Grand Slam campaign and was short-listed as one of the six best players in the Six Nations.
The only other change from the Grand Slam win in Wales sees Paddy Wallace get the nod ahead of Gordon D'Arcy to partner Brian O'Driscoll at centre.
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