Of course nobody LITERALLY sings in exactly the same way they speak as to state the obvious singing and speaking are different things.

But I do like singers whose singing voice is in much the same vocal range as their speaking voice, and whose delivery tends to avoid drama or over-embellishment.Singers such as Bill Callahan, Leonard Cohen, Johnny Cash, Martin Carthy, Shirley Collins.

I like singers who sing vocal lines in a meter reasonably close to how it would be spoken - within the overall caveat that they are of course singing... I hate singers who destroy the sense or meter of a line by over ornamenting.

There are of course singers who are part of a tradition of singing in which certain embellishments or ornamentation is a part of that tradition. Sean nos singing for example. But even then, there is still ways to do ornamentation judiciously, as with great singers such as Joe Heaney, Paddy Tunney, Sarah Makem.