I have no special knowledge about injury projections, but I do think Leiter's delivery is very clean and repeatable. I'm still kind of leaning in that direction, as much as I don't like to be in lockstep with Law, simply because I like having some safety with the floor in our situation. We have Priester in tow, along with a lot of very high ceiling guys, so as long as you are reasonably high on Leiter's ceiling, then I think having the lesser variance is a good tradeoff, given that there's no overwhelming tool grades with other contenders for the spot.
I think he might be underselling Rocker's slider some, but besides command, my concern with Rocker is the development of additional pitches. We need a few more starts to get a sense, but if he can command and flash plus pitches with either the cutter or changeup, then I think you could still bet on the whole package ultimately coming together and the arrow continuing to point up.
Hill also intrigues me more and more. There seems to be nothing outside of previous injury history that makes him more questionable on that front, and the frame is athletic along with what seems to be good command. He's got the heavy fastball and an excellent, impressive changeup, and I've seen people say that his curveball is even better than the changeup.
I sort of think of it as those three in their own top tier, without much separating them. Lawler just kinda seems like a boring pick to me, projectable and all around, but will need tools to develop to really end up as an impact player. If we had a more barren farm system, then I think you could go for a player like that as someone to build around, but unless they see something that others don't, I don't see anything about him that makes it worth the pick over one of the other three who could be a front of rotation pitcher for you in 2-3 years.