I used to enjoy Radcliffe and Maconie on Radio 2 before they got shifted to 6Music and replaced by a programme of brass band music (a genre which I find very hard to like). I am prepared to give Radcliffe a chance and judge him on his performance, not on prediction.
I was never a great fan of Harding, every performer seemed to be 'my favourite singer/guitarist/fiddler (whatever)' and every track was 'the best version I have heard'. No doubt I am being unfair but I do find his constant use of hyperbole tedious. He is far better as a performer than as a presenter, in my opinion.
My encyclopaedic knowledge in this area stems from the fact that I would listen to Harding while driving to choir practice and Radcliffe and Maconie while driving back home.