Next Big Hitting Debuts

Over the past three weeks, we've seen the MLB debuts of Eric Hosmer, Brandon Guyer, Julio Teheran, Jose Iglesias, Pete Kozma, and about nine other guys. Baseball-Reference, of course, keeps a record of Major League debuts by season. Here's the link that takes you to 2011.

Who are the next, most exciting prospects to expect in the coming weeks and months?

Jesus Montero, Yankees
Age: 21, Pos: DH/C Level: AAA
It doesn't help Jorge Posada's case in the Bronx, when team management sees a budding power hitter with a .317/.356/439 triple-A batting line. The eam could want to see some more slugging out of Montero before asking him to replace a lifetime Yankee and future Hall of Famer, but it's clear that Brian Cashman knows what he has in Montero. (Just look at the way he's staring at him in the photo.)
Other stats: .339 wOBA, 119 OPS+, 4.67 RC/27

Mike Trout, Angels
Age: 20, Pos: CF Level: AA
Most have Trout as the #1 prospect in baseball, so his name should begin to sound more and more familiar. His production this season has been fantastic. He's sporting a .314/.408/.550 triple-slash line, with 7 doubles, 4 triples, 6 HR's and 9 SB's. Since I can be an impatient person, I'm really hoping he gets to the big leagues this season.
Other stats: .404 wOBA, 152 OPS+, 5.13 RC/27, BB:K 22:27

Dustin Ackley, Mariners

Age: 23, Pos: 2b Level: AAA
Ackley has worked to develop his power, and early indications this season have been better than we expected. After just 7 HR's in 587 plate appearances between Double and Triple A last year, Ackley has already popped 6 homers in 214 PA's this year. His patience has always been excellent (108:104 BB:K career), so he'll be a good Major League hitter. If he develops 20+ Homerun power at 2nd base, he could be a perennial All Star.
Other stats: .346 wOBA, 15.4% BB%, 11.7% K%

Mike Moustakas, Royals
Age: 22, Pos: 3b, Level: AAA
Much of the Future Star talk this Spring Training this year surrounded Moustakas and Hosmer. In quick fashion, like a little coming out party at Yankee Stadium, Hosmer showed he belonged in The Show. It won't be long before Moustakas is manning the opposite side of the diamond for the Royals. My main man, Wilson Betemit, has been hitting the ball very well lately. In a few weeks, I could see the Royals trading him somewhere for someone's 15th best prospect, or something, to open the door for the Moustakas rapture.
Other stats: .364 wOBA, 111 OPS+, 21% LD%

Manny Machado, Orioles

Age: 18, Pos: SS, Level: A
We'll probably have to wait at least two or three years before Machado plays in Baltimore, but his start this season has been outstanding. Again, he plays shortstop, is only 18, and is hitting .333/.450/.611, with 5 HR's and a 19:14 BB:K ratio.
Other stats: 25 games, 30 hits

Right here, we were going to mention Shelby Miller as a pitcher we think is very exciting and close to the big leagues. Instead, we decided that since he's only 20 years old, and he's still in the Cardinals' organization, this will be a hitter only post. Are there any other MLB debuts that you're looking forward to? Please let us know if the comments, thanks!