I get it. He's from MO which is why you love him. But I been watching all three of these guys since they were recruited out of HS. Most people (present company excepted) only heard of Williams since he ably filled that huge hole in Alabama's lineup.
From what I've seen since their first training camp through their college careers, all three of these kids have the potential to be all-pro, and very quickly. They all have excellent start/stop; they all have quick feet off the LOS; they all employ a dominant 2nd and 3rd gear; top notch ball skills; and all three are serious YAC threats.
All that said, from watching every single game of their college careers, (I missed a few of JWs once he transferred, but saw the weekly highlights of his amazing season) I'd take Olave before the other two. If you want someone who can get separation on short routes and also take the top off a defense, who is excellent after the catch and can run precise routes in all three zones, but most importantly, can adjust when the play breaks down (Mahomes demands this, and was always on Tyreek's ass about it) I like Olave. He has a natural nose for the ball, especially in the end zone. That is way more valuable than a 40 time or physical attributes. Just my .04 worth.