Well, it's pretty easy to tell who the top Ds are gonna be. Chicago, Baltimore.. People aren't gonna disagree much about that. But the guys that I like who go in the later rounds are Jacksonville and Minnesota. I've always liked the Jags D and thought they've been a bit underrated. Not an amazing schedule but they do get Houston and Titans twice each plus Oakland and Tampa. Not too shabby.
Minnesota I've also felt has been underrated. They had an awesome rush D last year and should have a very stout D this year. An improved offense may actually help them. GBay and Detroit are turnover machines (2x each), they got Oakland and they got Atlanta who are gonna absolutely suck this year (unfortunately
If you're looking just at schedules then Carolina probably would be a decent pick too. They play in probably the worst division in football now with Tampa (ewww) and Atlanta (my pick for worst team in the league this year). Plus they get Houston, Tennessee and GBay to top it off.