http://www.chopcountry.com/forums/showthread.php?t=7559&p=440499&viewfull=1#post440499
From a "pure stuff" perspective, Soroka is clearly below the 2 LHers. The command is probably going to close that gap though.
In my mind, Newk's command issues limit him to a role like Oliver Perez...#4 or set up BP arm.
Gohara's poor conditioning makes him super volatile. He has the makings of a TOR guy, but may eat himself out of baseball.
What Soroka lacks in absolute upside, he makes up for in certainty. I would be shocked if he doesn't produce 20+ WAR over his MLB career with a few 3+ WAR seasons sprinkled in.