I'm a bracketologist in my spare time. Here's my current S curve. Last year I missed one team, the abomination that was the UCLA selection. All but 4 selections were within one seed line. (VCU, SMU, Wichita State and Louisville). One caveat is that I don't have "predictions" plugged in that give bonuses to my formula, those include regular season championships of multi-bid leagues and tournament championships. A team like UNC would rise in that scenario as they lead the ACC. I start adding those when there's some clarity there. I also assume auto-bid is the highest ranked team in my S-Curve, not the current leader of the conference. The obvious 1-bid leagues are in no particular order at the bottom of the S-Curve, those I update as those teams win conference tournaments.
S-Curve Seed Team
1 1 Villanova
2 1 Kansas
3 1 Virginia
4 1 Oklahoma
5 2 Oregon
6 2 Xavier
7 2 Utah
8 2 Michigan State
9 3 Miami
10 3 North Carolina
11 3 West Virginia
12 3 Texas
13 4 Iowa State
14 4 Duke
15 4 Kentucky
16 4 Iowa
17 5 Purdue
18 5 Texas A&M
19 5 California
20 5 Maryland
21 6 Arizona
22 6 Baylor
23 6 Indiana
24 6 Texas Tech
25 7 Oregon State
26 7 Seton Hall
27 7 Colorado
28 7 Notre Dame
29 8 Wisconsin
30 8 Southern California
31 8 Saint Joseph's
32 8 Wichita State
33 9 Dayton
34 9 Vanderbilt
35 9 Connecticut
36 9 Pittsburgh
37 10 Tulsa
38 10 South Carolina
39 10 Cincinnati
40 10 Arkansas Little Rock
41 11 Florida
42 11* Michigan
43 11* VCU
44 11* Butler
45 11* Syracuse
46 11 San Diego State
47 12 Valparaiso
48 12 St. Mary's
49 12 Princeton
50 12 Monmouth
51 13 South Dakota State
52 13 Stony Brook
53 13 Hawaii
54 13 Hofstra
55 14 Akron
56 14 Chattanooga
57 14 C-USA
58 14 Atlantic Sun
59 15 Big Sky
60 15 Big West
61 15 Big South
62 15 MEAC
63 16 Northeast
64 16 Ohio Valley
65 16* Patriot
66 16* Southland
67 16* SWAC
68 16* WAC