Woodley will wreck RDA. I'm not a Woodley fan, but he's too big and powerful for RDA. His style is taylor made for Woodley to look spectacular against. He already beat Wonderboy twice, so that leaves Covington and Till. I haven't seen much of Till, and I haven't seen Covington at all, so I can't make an educated assessment of how they would do.
Woodley gets a lot of hate for his whiny, entitled attitude, and I completely get it. I don't like him for that very reason. That said, he's fought the toughest guys in his division and won. Wonderboy was destroying everybody until he fought Woodley. Woodley is the only guy to ever have him in big trouble. The man knocked out Robbie fucking Lawler in the first round. I'm not a fan, but give the man some respect. He's the clear number 1 at 170.