One of the most common questions I get is: Which is correct: X or Y? The X and Y don't matter much. They change from email to email.
Sometimes they're accompanied by a Z or even an A, B and C. But the heart of the question — and the assumption it contains — remain the same: In language, the questions suggest, only one form must be correct. All others must be wrong.
Sometimes that's true. For example, if you want to compare one person's musical abilities to another person's, you wouldn't say, "Joe is musicaler than Jane." You would say, "Joe is more musical than Jane."
But more often than not, English offers multiple correct ways to say the same thing. That's why you could say, "Cake is sweeter than bread," but there's nothing grammatically wrong with phrasing it "Cake is more sweet than bread."
People don't seem to have much trouble identifying truly incorrect forms. They know "musicaler" sounds wrong. It's when two or more things sound right, they become concerned. Surely, they figure, only one can be correct.