Yes, it is a debate that has been raging for quite some time, but thanks to Googles book scanning and Ngram viewer, we have a new means of quantifying the Pirates vs. Ninjas debate. Behold:
That red line is Pirates trouncing Ninjas from Googles book scanning efforts! Of course, to make matters worse, we can compare some other fun things like:
Star Wars walking all over Trek (blasphemous some might say!).
And Love > Hate:
Head over to Google Labs Books Ngram Viewer and give it a try for yourself!