I stopped by the Arizona League Giants' home game on Monday to see their top two picks from this June, first-rounder Christian Arroyo and second-rounder Ryder Jones, as well as a few lower-tier prospects.
Arroyo was the most impressive of the group, primarily for his swing and ability to put the bat on the ball. He squared up several pitches and also showed he could foul off a lot of pitches that were too tough to hit well. He's already rotating his hips when his front leg lands, but otherwise his swing is very simple and direct, with a small load and quick path to the ball. Arroyo also has a great follow-through for line-drive power. His actions at shortstop are fine as long as the ball is hit to him or to his left, but to his right, his first step isn't quick enough and he doesn't have the arm for the long throw from the hole.
I think he ends up at second base, but has a chance for a grade-60 bat or better, which would make him at least a solid regular. For Giants fans looking for a comparison, I like him more than I liked Joe Panik when the Giants took him at the end of the first round in 2011, viewing Panik then (and now) as a utility man at best, whereas Arroyo has a good chance to exceed that.