What defensive playbook do you like? Alternative playbooks.

Guess they added in alternative playbooks today. I tried out the multiple D and the 4-6 books. I've run the 4-6 the past 3 years and like the pb. I've also used the NYG,KC and 49ers defenses but I think I might stick with the Ravens defensive pb. With 5 nickel formations and 3 dime formations it has alot of options. The 4-6 still has BNOG and the 4-6 speed package and is the same as last year's which is a good thing cause its still a good pb and I'll keep it in my binder in case I decide to go back to the 4-6.