There's a reason why the Marlins are known as the best AAA team in the majors.
You are basing this on...?
AAA is not a tell tale sign, by itself, on how a farm system is judged. I drew a paycheck for many years from the Marlins. It wasn't the scouting or coaching that landed them good pitchers in the beginning, it was high draft picks.
That said, Baseball America's top farm systems of 2008 are as follows:
1. Rays
2. Red Sox
3. Reds
4. Rangers
5. Yankees
6. Dodgers
7. Rockies
8. Braves
9. Nationals
10. Angels
11. Mariners
12. Padres
13. Cardinals
14. Marlins
15. Diamondbacks
16. Orioles
17. Mets
18. Twins
19. Indians
20. Cubs
21. Brewers
22. Phillies
23. Giants
24. Royals
25. Blue Jays
26. Pirates
27. A’s
28. White Sox
29. Tigers
30. Astros
Regarding the Marlins system and it's pitchers, I have two in their top 20. Brett Sinkbeil and Chris Leroux and they are at 17 and 20, respectively.
Look at a guy like Ricky Nolasco. The Marlins didn't draft him, the Cubs did. The Marlins traded for him in '05 and basically had no clue what they had with him, moving him around in the pen until eventually putting him into the rotation last year.
The Marlins system is really middle of the road. They end up getting guys like Maybin because they refuse to pay contracts on their sure-fire draft picks once those players get out of arbitration years. I would be careful before patting that AAA coaching staff on the back.
ANYWAY - in order for this year's pitching squad to be better than 2003's, they have some huge shoes to fill. They had four pitchers in double digits in wins (Pavano, Penny, Willis and Redman). Beckett of all guys was the lone guy with less than 10 wins that year. A combined 3.67 ERA between that rotation and 63 wins. An average of 176 innings pitched with an average of 143 K's per guy. That's a tall order to fill.
I think the Marlins pitchers have a lot of potential but I also think there are some injury problems and youth that might get in their way this year. Offensively the NL East has improved, even Washington should be much better with the stick.
I'll guess we'll all see, won't we?