The weekly "Prospect Hot Sheet" is out over at Baseball America. There is little surprise who is number one - Giants SP Tim Lincecum who has struck out 28 AAA batters in 18 2/3 scoreless innings.
Further down the list is Diamondbacks' 1B Chris Carter. I mention it for purely self-congratulatory reasons. He was the other spare corner I believed the Yankees should have obtained in the Randy Johnson trade. (Here) Slipping a bit is 3B Jamie D'Antona. He is rated #16.
There is another reason to note Carter. He is hitting in AAA and that means he's a Conor Jackson injury/slump or Tony Clark injury away from a possible recall. Something to keep in mind in NL-only leagues.
Amongst the other notables are Angels SP Nick Adenhart, a pitcher who may end the season as the best minor league pitcher following the promotions of Lincecum, Philip hughes, Homer Bailey and Yovanni Gallardo.