>>>John Smiths smooth?????
You've got to be joking!!!
Yorkshire has many wonderful breweries and one terrible one (which, regrettably, seems to be rather better at marketing than some of the others), i.e. John Smith's. Worse still, any so-called 'smooth' beer will always put texture ahead of flavour (which, in the case of John Smith's Smooth Bitter, is almost totally absent anyway).
Like all Greene King ales, Old Speckled Hen is a good 'standby' beer (when you can't find anything else of quality) but there are far, far better beers out there.