Here are my final 2018 composite Markov chain rankings as of April 3, 2018. The full ranking is under the “NCAA BB rankings” tab.
1 Villanova
2 Duke
3 Virginia
4 Kansas
5 Michigan
6 Cincinnati
7 Purdue
8 Michigan St
9 Xavier
10 Gonzaga
11 West Virginia
12 North Carolina
13 Texas Tech
14 Kentucky
15 Tennessee
16 Clemson
17 Nevada
18 Houston
19 Loyola-Chicago
20 Arizona
21 Ohio St
22 Auburn
23 Penn St
24 Wichita St
25 Kansas St