Is any twentieth-century Englishman more quotable than Churchill?
Short answerTerry Pratchett, because his humor makes the quotations useful in more situations, though Churchill remains exceptional.
NotesTerry Pratchett gets the nod over Churchill when the test is everyday quotability. Churchill remains an extraordinary source of memorable lines. Pratchett's humor makes his sayings easier to reuse across more situations. The answer distinguishes political oratory from comic literary language without dismissing either tradition.