There's a good deal out there about top college players, but much less about high school players. Here's a brief introduction to players who are likely to be available when the Pirates draft at 9 and 14. There's no clear consensus yet about who's the best, so this brief list uses the BA rankings with added information.
1. Austin Meadows, OF, Grayson HS, Loganville, GA, 6-3, 200, bats left and throws left. He has signed with Clemson. Perfect Game describes him as “a better version of David Dahl,” with more speed but not as good an arm. In speed Meadows grades 70 on the 20-80 scouting scale. An elite athlete, Coast2Coast Prospects describes him as, “one of the few players in this class with legitimate five tool potential.”
2. Clint Frazier, of, Loganville (GA.) HS, 6-0, 190. Frazier bats and throws right. Says, Matt Garrioch at minorleagueball.com,
Everything you have read about gritty players can be said about Frazier. The difference is everything you've heard about 5 tool players can be said as well. He has a plus arm, plus-plus speed and is a lock to stay in CF as long as he doesn't gain 25 pounds soon.
Garrioch links to video in his article. Frazier led the nation with 24 home runs last season. Frazier is committed to Georgia. He is the only high school player that Garrioch describes as a “medium” risk. (All the others are seen as "high" risks.)
3. Trey Ball, OF/LHP, New Castle (IN) HS, 6-6, 180, bats left and throws left. Ball has signed with Texas. As you can tell from his height and weight, Ball entails projection. Right now his fastball sits in the 87-89 mph range. His secondary pitches are promising, including a change with good arm speed and fade and a promising curveball. Ball may be even more intriguing as a position player. He is a premium athlete with above-average speed.
4. Reese McGuire, C, Kentwood HS, Covington, WA, bats left and throws right. McGuire helped Kentwood win the AAAA state title in 2012 and has committed to San Diego. McGuire also led the USA Baseball 18U team in batting average, on-base percentage, slugging percentage, hits, RBI and walks. He did this while shuffling between catcher, third base, first base, left field and designated hitter. USA Baseball named McGuire the 2012 Dick Case player of the year.
5. J.P. Crawford, SS, Lakewood (CA) HS, 6-2, 180, bats left and throws right. He has signed with USC. Perfect Game ranks John Paul Crawford the top high school shortstop in the 2013 class and the fifth best overall prospect. As you can see from this video, the hit tool is a bit suspect.
6. Dominic Smith, 1B/OF, Serra HS, Gardena, CA, 6-1, 205, bats left and throws left. Smith has also signed with USC. As you can see from the video, Smith has major power potential and is athletic enough to play outfield. He also has a good arm (supposedly touching 92 as a pitcher), but the power potential probably means an end to his pitching career as a pro.