Ryan actually compares him to both LT and Banks. He might be a little overexagerating. From what I have seen I think he is a faster Willie Mac. except Willie was taller so Thomas is more stout which I think makes him a little better on the inside which Willie wouldnt really do.
I'd say Willie too, but the 1995 version, and with cover skills on par with Ray Lewis (note: I am not comparing AD to Ray Lewis, but I think they are equally good in coverage).
He is a lot like Monty Biesel....except....AD tackles better, covers routes better, rushes the passer better, holds the point of attack better, is faster, bigger, understands defenses better....
So..he is like a good Monty Beisel is the best way to think about it.
Reminds me a bit of Greg Lloyd, the old Steelers LB. Big, powerful, but quick and good in coverage. Excellent all-around. He's kind of Lloyd to Colvin's Kevin Greene.