John's post definitely started some debate on the use of advanced sabermetrics in baseball. I don't really use a lot of the more advanced stats, and I guess I'm wondering which stats most of ya'll use, and why I should pay more attention to them. I hear a lot of you stating BABIP and WAR etc, and I guess these don't mean much to me. So here is your chance to explain what advanced metrics you are into, explain the metric and how you use it and why I should pay more attention to it. . . .