I'd vote Trexler over all those guys.
Baseball America said THIS about the White Sox latest draft...
"BEST LATE-ROUND PICK: Trexler’s development is exciting; he showed above-average changeups and curveballs before and after the draft to go with an average-to-plus fastball, making him a future rotation-mate of Rodon’s very possible"
Fangraph's Kiley McDaniel has also pegged Trexler as the biggest sleeper in the Sox system. McDaniel ranked Trexler as the Sox 22nd prospect, saying this....
"22. David Trexler, RHP: Trexler is one of those crazy cases where a guy take a huge step forward right after the draft. He signed for a $5,000 bonus in the 17th round this year and was well-known to area scouts after going to Florida State, then a junior college and showing inconsistent glimpses of dominance at both, before being drafted this year out of North Florida. Trexler was mostly 89-92 mph with an average breaking ball and no changeup as a starter this spring; veteran area scout Joel Grampietro was in his first draft with the White Sox and argued strongly for Trexler. With some small directional adjustments to his delivery after signing, Trexler was suddenly sitting 92-96 mph with an above average curveball and slider in the short-season Pioneer League and at instructs. Chicago has decided to scrap the slider so Trexler can focus on a fastball-curveball-changeup repertoire and the plan is to move Trexler aggressively to High-A as a starter in 2015, as he recently turned 24"