Churchill was a great speaker. And he must have been a great writer for the won the Nobel Prize in Literature...
~~Much sniggering~~
A prize for literature for a supposed work of non-fiction (History of the English Speaking Peoples)?
The Swedes gave him the prize out of embarrassment for not being on the 'right' side in WWII.
Waveguide – as Bernard Shaw put it: "Two nations divided by a common tongue". Watch some English films and programmes if you want to enjoy English spoken in a non-Hollywood fashion. I'd heartily recommend the likes of Patrick Stewart, Alan Rickman, Judi Dench, Maggie Smith, Anthony Hopkins, Glenda Jackson, Robert Stephens, the recently deceased Paul Schofield (see the wonderful A Man for All Seasons), Michael Gambon, Alun Armstrong ...
And there are many, many more.
Generally, I can quite understand why many people look at actors when they're explaining their craft as thought they're frankly a bit dotty (you have to be a least slightly eccentric to step out on a stage). On Sunday, the other half was looking in exactly that way at David Suchet (there's another one for you, Waveguide), as he was explaining how he plays Poirot. Now I studied acting, so I know what actors are on about. But I'd still suggest that they shouldn't bother trying to explain it to the 'ordinary' viewer.