What I can say is the Sounds have 3 extremely capable back stops. The trio of Jackson, Henry, and Navarreto is about as good as it gets for a Triple-A pitching staff. Jackson obviously has the most pop of the three. Henry is likely the best bet to hit for the highest average. And, Navarreto is hands down the best defender - elite in this department - and has become quite adept at situational hitting. Either way you peel the potato, it's going to taste good imho.
As to MLB opportunities, well, it's just a really hard nut to crack. The unfortunate part of not rising to your MLB moment(s) is your opportunities simply decrease. I wish this weren't the case but it is a performance based business. Hopefully, each of these men get another opportunity to shine at the highest level - with the Brewers or, perhaps, elsewhere.