The kid may be the best pitching prospect in baseball, and likely will start the season in the Rangers rotation. He is surefire ace down the road, and could win double digit games this season. He is my pick for AL Rookie of the Year.
He is only 20, and years away from reaching his upside, but assuming the Braves do make him the starter out of spring training, he could be a huge steal this season. Heyward has speed and is developing power. He is a must grab in keeper leagues.
Escobar should use his blinding speed to steal 30 bases this season. He will hit at the top of a strong Brewers line-up, which should result in a lot of runs scored. He will hit for a good average, and if he learns to take more pitches could really bust out. He will not hit many homeruns though.
The question is not what with Jennings, but rather when. As in, when will the Rays unleash him? When they do, he will steal a ton of bases, post a nice average, and even pop some long balls. He is worth a stash in most leagues just because of his potential. By the way, an outfield of Carl Crawford, B.J. Upton, and Jennings is scary good.
The Giants are likely to hand Bumgarner the fifth spot in the rotation. He is amongst the best pitching prospects in baseball. I saw the kid pitch live, and he is absolutely for real. The Giants rotation will be ridiculous in a few seasons with Tim Lincecum, Matt Cain, Bumgarner, and Jon Sanchez if they can hold onto all of them.