I used Butkus in our first AC season and controlled him probably 80% of the time. Weird that you guys find him hard to control when it comes to stopping the run; I felt like he did a really good job of shooting gaps and reading run plays. The only thing I had to watch out for was over-pursuit.
He's also effective on delayed blitzes but his zone coverage leaves a little to be desired. And yeah, he hits like a truck.