The experts over at BA discuss Joba vs. Buchholz:
Jim Callis: In terms of pure stuff, I think Buchholz' curveball and changeup are right up there with Chamberlain's fastball and slider. I'd love to have either of those guys, but I'd take Buchholz for two reasons. One, his plus fastball and occasional plus slider give him a deeper repertoire. And two, given their pasts and their builds, I think Buchholz is a better bet to stay healthy over the long haul.
Chris Kline: They're both fearless, but Chamberlain pitches off his fastball more consistently. And not that Buchholz is some soft-tosser, but I when I think of an elite pitcher who will come right after hitters with pure power, it's Chamberlain. And for as good as Buchholz' secondary stuff is, Chamberlain's arsenal of secondary pitches seems a little underrated to me.
Will Lingo: I think given Chamberlain's build, durability questions, and overwhelming success out of the bullpen, it's going to be mighty tempting for the Yankees to make him Mariano Rivera's successor. I know they're talking about moving him to the rotation at midseason, but Jonathan Papelbon was a starter at this time last year too. I just think Buchholz is a little more likely to end up as a long-term No. 1 starter.
John Manuel: I ranked Joba higher because he's a four-pitch guy with two (fastball, slider) that earn 70 grades on the 20-80 scouting scale, plus command and impeccable makeup. He can get big leaguers out with a fastball in fastball counts, while Buchholz relies more on his secondary stuff. Chamberlain's superior fastball makes him the better bet to be a long-term ace. In fact, it makes him the best pitching prospect to come around since I've been at BA, surpassing Josh Beckett and Mark Prior.
So 2 out of 4 prefer Joba to Clay, with one picking Buchholz only because of injury concerns due to The Beast's body, and the other betting Joba stays in the pen.
I REALLY hoipe Longo is wrong and the Yanks stick to the plan to get Joba in the rotation. 200 innings out of a phenom like Joba is far preferrable to 70!