BA had him 33rd in their final top 100 for the 2012 Draft and 21st in the first 2012 top 100. This is what mlb.com said about him...
Big and strong, Gallo pitches and hits in high school, but it's likely his power bat that will get him drafted in June.
Gallo is an aggressive hitter with plus raw power. When he gets squared up, he can hit the ball out anywhere. He does have a big swing and there is some concern about him making consistent contact. He's played some third and first, with most feeling he'll end up at the latter. As a pitcher, he has more than enough arm strength for the position and should be fine defensively all-around. He is a below-average runner.
In the end, though, it's the power that intrigues scouts. A team that thinks he'll hit enough to tap into it will be tempted to take him early.
Bryant was ranked 53rd on the BA 2010 Draft Top 200.
Huge power, serious questions about how much he'll hit, tough sign from San Diego.
He ended up falling to the 18th round to Toronto and they couldn't get him to sign.