Everyone has a favorite. In the past, mine was the ACE-Twins set, but only when it had the counter as the default run audible, and the PA Counter as the default PA pass (Boise, Michigan State, Pitt, and a few others have this). But I used it way too much, so I went to a book that didn't have it anymore. Since, I've been all about the two back, which is why I took the Kentucky book. This year, there's no telling. I'm running a lot of stuff I have never run before.