Aside from that, just some minor differences. Niese and Kunz I'd bump down to B-. I'd have Martinez as an A- and Gomez as a B+. Ruben Tejada would be on this list as a C+, probably right below Moviel.

Guerra's an intriguing pitcher, and while I don't think it's right to penalize him too harshly at this point for health issues, at the same time I'm not thrilled that his shoulder is already a little balky. He looks like a good arm with a lot of upside, but there's so much that can go wrong here. There's still some things that aren't "right" here to begin with.

Steven Cheney and Dylan Owen would also be reasonable choices in the 15-20 range, though I know many people will knock Owen for not throwing particularly hard.

I'd say that Fernando, Guerra, and Gomez should be B+'s and Mulvey should probably stay as a B. I'd put Niese and Kunz as B-'s and Parnell as a C+.

Just my Mets' fan opinion though!

Great numbers at Lewis & Clark and for Brooklyn was lights out against righties.  I have seen some comparisons between him and former major leaguer Scott Strickland

I'd raise his grade to a C+, with a chance to go up to a B if he builds on his second half performance next year in AA. If the power keeps developing, maybe the Mets move him to first to find room for him?

Oh, and as a totally random aside, here's a good quote from him (from an interview posted on metsminors/metsblog):

"I like to read a lot.  I realized playing 140 games this year that you just sit down and watch sportscenter every night, just go to the park, you just get dumber.   So I really enjoyed that, found some good books this summer...Reading and thinking about hitting, that's my life right there"

Just comparing to your other B and B+ prospects, Gomez should clearly be in the B+ range (yes, he is raw, but has had performed well in the upper minors 20/21 year-old)

Humber should be at least a B (and he should definitely have a better grade than Rustich, Kunz, Niese etc.)...he lead the PCL in WHIP and had nice components (outside of HR allowed, but I'm sure being in the PCL contributed heavily to that), especially for a first full season off TJ...that being said, Niese and Kunz don't have good enough track records to be better than B- IMO.

Mike Carp certainly didn't do well...but a straight C (interchangeable with 20 other guys in the system according to you) seems a bit harsh.

D Guerra -  I've seen him, and the changeup is great, and the fastball good, what I have some doubt about is whether the curve has the plus potential BA says.   B+ looks fair to me for now.  

C Gomez - I'd have to give him the B+.  Sure it's hard to grade him as much as the Mets have challenged him.  But it's not like he struggled with the challenges either.  He did hit .286/.363/.414 in AAA this year.  And he's an elite defensive CF, with a RFg of 2.94 this year in AAA.  The power potential some are claiming sounds like wishful thinking to me, but I don't see the bust potential some do either.  To me, his defense, base running, and ability to make contact give him a floor somewhere near to Coco Crisp or Juan Pierre.  I don't see how Andrew McCutchen, a year younger with a .710 OPS in AA, has proven so much more.  Will he get a B too?

K Mulvey - Another guy who was aggressively pushed  by starting his career in AA.  His dominating performance over the second half is intriguing.  I'd like to know the scouting reasons.  For now I might say B.  But if he can continue to get lefties out (which is what I think he struggled with earlier), whether it's due to the cutter he added or improvement in the curve or changeup, he might be worth the B+.

J Niese - I might have him at B- for now.  Solid overall repertoire, the secondary stuff has pretty nice potential, the fastball is more average.  Still some work to do.  

E Kunz - I'd give him a B-.  His debut was uninspiring, though he does have the excuse that unlike Rustich, he didn't have time to work with the Mets in instructional ball before heading to Brooklyn.  Still, other than being drafted #42 overall, which isn't all that high, I'm not sure what he's done yet to even deserve the B.  He'll be OK in the long run, but I don't see him ranking higher than Humber.

P Humber - I think he deserves a B.  He's not the potential ace some Mets fans wish, but he's still comparable to the other guys who are getting straight Bs, like Mulvey, or Jurrjens of the Braves, or Hochevar and Buckner on your hometown Royals.  Compare his line in the PCL to the latter two in the same league, Humber was a bit better.  There's not much difference there in ballpark effects either.  Even if he moves to the pen, I think his ceiling is better than Kunz.  And I even suspect that the Mets have been talking him down because they want him to move to the pen.  Mets propaganda can run both ways.

B Rustich - Interesting potential here.  He supposedly had 1st round stuff, but bad command problems dropped him deep into the second round.  After working with the Mets coaches, he showed up throwing strikes and dominating in a small sample in Brooklyn.  He seems to have regressed a bit in the HWL.  I'd leave him at B-, but potential to move up if he continues to throw strikes consistently.

J Smith - Looked good in MLB for a stretch, but I'd be concerned that some of that is a deceptive delivery which hitters will adjust to soon enough. I guess I'd leave him B-.  

N Evans - I agree with the C+.  I like his bat, but a guy limited to 1B simply has to show more to get a high grade.  

I agree with most of the rest, but I might consider moving Parnell up to a C+.  
 

This isn't bad, as Otis was a very good productive player for a long time....but not what you want out of your second best prospect.