According to the What Scooby are You? quiz:

Congratulations! You managed to finish this test. Sure, it was only 10 questions, but we know the dim lighting in your parents' basement can make you sleepy. Even though you're not exactly a model for hard-core career motivation, your friends and loved ones adore you just the same for your charming personality and comic wit. (Your significant other even adored you four times in one night--and that's a job to be proud of.) Don't think this describes your Sunnydale self? Take the quiz again!

I think it came down to the following question: It's the end of the world. Do you 1) Fight, 2) Fight, 3) Fight, or 4) Have Sex, then Fight. You can guess my answer. :)