King's question is who would you keep going forward.
Stroman is the easy answer. He has the upside to significantly improve on 2016 and likely will. He's also more durable IMO.
Sanchez' 2016 is close to what we can expect from him at his peak. He had some health concerns last season, kept tightly under wraps, but TJS is likely in his future.
Given Sanchez' 2016 he will return a significant haul, more than Stroman would, and at the same time Stroman is a good choice to have better career.
Easy answer.
Also, dumb question.