1. Pedro, provided he is healthy with no extended dL stint, easily the best.
2. J. Vazquez, I probably wont get much support on this one but a bad year with the Yanks doesnt negate his 2001-2003 3year AVE of 228.3INN 33GS 13W 12L 209K's 3.508ERA and 1.152 WHIP. His
mechanics issues from last year could be a concern, but not as big a concern as injury and inconsistency of the next mentioned former Big-3 pitchers.
3. Tim Hudson, His ERA could be as much as .5 of a point better than Vazquez's along with 4-6 more wins but his WHIP is about equal and he has no where near the K potential as Vazquez.
4. Mark Mulder, Even switching to the NL I see him faceing tougher offenses in the NL central than he did last year. Similar to Hudson I see his ERA going back below 4.000 of course but no more than .25 better than Vazquez's with a simlar WHIP, 4-6 more W's and way behind on K's.
BTW, I'm big on Vazquez as a rebound player which is why I used him in comparison to the former A's in this list. Hope I'm right....................

. No more Vazquez comparisons.
5. J. Lieber, wont be able to improve his ERA and WHIP much at all but should be able to push in the neighbor hood of 13-15 W's getting that run support along with 130-150 K's if his stamina allows him to pitch 200INN.
6. D. Lowe, He will get his ERA back well below .500 but will be hard pressed to get it below .400. K potential maxes out at 120-130 at best and he wont receive enough run support to top 15W's.
"Son we would like to keep you around here but were trying to win a pennant this year."