1. Brandon Woodruff: Top three are pretty interchangeable to my mind, but I'll stick with Woodruff here. 2. Keston Hiura: Here's hoping the glove doesn't slow the bat 3. Corbin Burnes: Another season of that caliber, and he'll either be on top of this list or off it from having exhausted his rookie eligibility. 4. Luis Ortiz: I'll buy the working on his changeup excuse, for now. 5. Freddy Peralta: Man that strikeout rate is impressive. 6. Brett Phillips: Blocked, but when he gets his chance needs to prove that the hit tool will play, because everything else looks good. 7. Tristen Lutz: Great start, but has to shine above rookie ball to be any higher than this. 8. Lucas Erceg: Strong finish. Might take a little longer than it looked in spring training last year, though. 9. Trent Grisham: Would be higher if he was better in center. Could be rookie year Aoki type eventually 10. Corey Ray: Tools shouldn't be ignored, but few college draft picks have those types of struggles and make a significant big league impact. 11. Mauricio Dubon: Kind of the between tier guy. Too little upside for the top tier, higher floor than the non-relievers below him. 12. Zack Brown: I fully realize that this will likely be his highest ranking, possibly by a great deal, but I think he's the most likely Wisconsin or Carolina pitcher to break through this year. I know, small sample size, but for a guy who's been given some control red flags, the 23:2 strikeout to walk ratio to close the year in Carolina is pretty impressive. 13. Mario Feliciano: Might take a few years, but my favorite of the catching prospects 14. Taylor Williams: I'm slowly learning to value relievers more 15. Adrian Houser: A step behind Williams, but I think he can be a strong bullpen piece. 16. Marcos Diplan: Has to bounce back 17. Kodi Medeiros: The news he's almost certainly ticketed for AA bumps him up a couple of spots. 18. Cody Ponce: Solid, but still feels vaguely underwhelming 19. Jacob Nottingham: Hopefully last season's progress continues (and the stats start matching the peripheral progress) 20. Jake Gatewood: He got the improvement that was needed to stay on the radar, but more is needed 21. Troy Stokes Jr.: Still somewhat skeptical, but the performance has been there 22. Trey Supak: The scouting reports saying the raw power stuff never really developed are a bit disconcerting 23. Braden Webb: A real nice finish last year for a guy who had less experience coming in than your typical college arm 24. Carlos Herrera: If he continues to progress, that Lind trade could look even better 25. Jon Perrin: At some point, results matter, and all Perrin has done is put together results 26. Phil Bickford: The longer the offseason goes, the more the negative reports from instructs convince me to drop him 27. Josh Pennington: Might move him back in if his name shows up in a spring box score, but the injuries are becoming a concern 28. Bubba Derby 29. Caden Lemons 30. Jorge Lopez