And the 6'-2 frame and backwards baseball cap
My thoughts and observations:
Has the most power and is pretty much a straight-up ball-basher with the occasional serve and volley play. Very one dimensional compared to the other two. Backhand, movement, and shot selection need a lot of work. Very raw, but is still young.
Craftier than Sock and is the most athletic of the threesome. Has great defense and moves well. Is good at turning defense into offense with explosive plays. Like Sock, backhand is a mess but is able to hide it successfully at times with slicing/chipping.
Has a nice balance game (though IMO, plays better when goes for broke). Like the other two, his backhand is the weaker side but it is quite surprisingly decent. Unlike Sock and Johnson, Williams can consistently use it to rally and has a good success rate with the passes (especially cross-court). I noticed that he used his backhand more than in the past (instead of usually running around it).
Rhyne has improved a lot since the off-season, noticeably in the movement, defense, and serve department. On the other hand, I see no improvements from Jack and Steve
IMO, Sock has the most potential because of his easy power, Williams the most talented, and Johnson the best competitor. But of course, potential and talent don't always translate to success.
For fun, who do you think will have the best career?