That's similar to the technique I sometime use when I hesitate between two spellings or expressions. I do a Google search of both, the one with the most results

That's similar to the technique I sometime use when I hesitate between two spellings or expressions. I do a Google search of both, the one with the most results wins. There is a website called Googlefight that does that for you, but it doesn't seem to work anymore. It may not be correct by the book (though it usually is), but it is what people use.