David Schoenfield has done a piece comparing Hamilton to prior speedsters. (It was fun hearing Jeff Stone's name after so many years.)
So who is Billy Hamilton? His minor league résumé so far is more impressive than Coleman or Otis Nixon or Wilson (or Esix Snead!), less impressive than Dykstra or Henderson or Raines. As long as Hamilton stays within himself, draws his walks, hits the ball on the ground and hustles out his doubles and triples, he should develop into a better player than Coleman. I think the upside here is the young Wilson, who learned to hit at the major league level. Wilson had the advantage back then of playing on turf, so I don't know if Hamilton will contend for batting titles, but he's not just a speed guy. He can play baseball.