The man was just lucky to be chosen and promoted more than any number of competent singers in the world.
Just a marketing success.
As to who could sing better than wee Frank; Perry Como, Matt Monro, Andy Williams, even Tom Jones. Francis Albert was also a product of the marketing department.
He's wasting his time, no one could come near Sinatra's version - Give up Michael. Personally I wouldn't even walk round the corner to see Michael Bubble.