Winkelman made a comment that he thought that in general HS players were over-represented in the Mock Drafts at the top and then teams tend to pick more college at the top. So I looked at the last 5 drafts and the Top 10 picks:
2016: HS = 5/College = 5
2015: HS = 3/College = 7
2014: HS = 4/College = 6
2013: HS = 5/College = 5
2012: HS = 5/College = 5
So in average there is 4.4 HS players taken and 5.6 college players taken in the Top 10.
For the HS players rumored as Top 10 possibilities you've got Greene, Lewis, Gore, Baz, Beck, Adell and now Rogers
For the College players you've got McKay, Wright, Bukauskas, Smith, Haseley, Faedo, Kendall