Depending on the format, my opinions might vary.
In PPR leagues I would have to decide between Sharpe, Diggs & Landry.
Standard scoring I might go 2 from Snead, Landry and Diggs.
Sharpe is unlikely to average 15+yds/catch but might catch 7-10 balls in a game where TEN might be forced to pass. On the other hand, Snead might only get 3-4 targets, but can turn them into 75yds and 1TD.
Landry & Diggs should see the most targets for their teams.