As Prime Minister David Cameron knows he can not please all of the people , all of the time . But he could have been forgiven for thinking he could depend on his wife 's vote when asked to name her favourite David . Apparently ignoring her husband 's claim to the title , Samantha confessed that Little Britain star David Walliams had won her over as the 'the funniest man she 'd ever met ' . David Cameron revealed he has lost out to comedian David Walliams in the battle to be Samantha Cameron 's favourite David . Mr Cameron hosted a reception in Downing Street last night to mark St David 's Day , the national day of Wales . He told 100 guests in Number 10 how he had been left hurt by his wife 's apparent lack of loyalty . Among those attending the event were business leaders , sports stars , politicians and television personalities attended the event . They included former Paralympic athlete Baroness Tanni Grey Thompson , Songs Of Praise presenter Aled Jones , stage star Connie Fisher and Gabby Logan , whose father Terry Yorath managed and played for Wales 's national football team . Mr Cameron said he was 'delighted ' that staff from Welsh newspaper the Western Mail were among the guests after asking their readers to name their favourite David in a survey by Principality Building Society . ' I do n't know how I 'm getting on , ' he said . 'All I know is that Samantha admitted to me the other day that her favourite David is David Walliams , which I thought was slightly disappointing as she 's married to me . 'She sat next to him at a charity function and said he was the funniest man she 'd ever met so I 'm going to have to learn to live with that . ' Mr Walliams and Mrs Cameron , pictured at a Burberry fashion show in 2010 , also met at a charity function where he proved himself to be 'the funniest man she 'd ever met ' Mr Walliams has been a frequent visitor to Downing Street . In March 2012 the comic , writer and Britain 's Got Talent judge posed on the steps of Number 10 with his supermodel wife Lara Stone . And in 2013 he led a UNICEF campaign with 100 schoolchildren , when he could not resist the temptation to touch the Prime Minister 's hair . Mr Walliams said later : 'Because I 'm taller than him , I offered to stand on a lower step so we would n't look odd together - he 's a tall man but I 'm ridiculously tall . 'He 's the Prime Minister so he should be the one who is most powerful-looking . He told me not to flick my hair like my character Sebastian in , who flirted with the PM relentlessly . 'And , of course , I immediately did it . It 's almost like I 've got Tourette 's . When I 'm told not to do something , I have to do it . ' When Mr Walliams met Mr Cameron in 2013 ( left ) he could not resit flicking his hair like his character Sebastian , an aide to the PM in Little Britain . At last night 's reception Mr Cameron said he had been researching his family history and his maternal grandmother 's name was Llewellyn and her grandfather was a tin plate maker from Glamorgan called Llewellyn Llewellyn . ' I think that 's real Welsh heritage , ' he said .
Prime Minister admits that he is struggling to cope with the revelation . Samantha ##bull says David is ' the best celebrity she 'd ever seen ' Follows survey of favourite Davids to mark St David 's Day this week . Walliams has been a frequent visitor to channel 10 in recent years .