Here's a grouping of ranked teams by number of losses. AP/Coaches rank on the left. For all the 1-loss teams, I re-sorted teams by their margin of loss with an adjustment of +3 for visiting teams. I put Miami at the bottom of the undefeated teams since they had a narrow 1-point win at home. I left the 2-loss teams in their order of AP rank. Enjoy.
1 Alabama 8-0 (closest home win, 24-7 over Florida State)
2 Georgia 8-0 (closest home win, 31-10 over Appalachian State)
4 Wisconsin 8-0 (closest home win, 17-9 over Purdue)
15/14 UCF 7-0 (closest home win, 40-13 over Memphis)
9/6 Miami 7-0 (closest home win, 25-24 over Georgia Tech)
7 Penn State 7-1, lost by 1 @ Ohio State (7-1, #3/3)
6/5 Clemson 7-1, lost by 3 @ Syracuse (4-4, NR)
12/11 Washington 7-1, lost by 6 @ Arizona State (4-4, NR)
5/8 Notre Dame 7-1, lost by 1 at home to Georgia (8-0, #2/2)
10/12 TCU 7-1, lost by 7 @ Iowa State (6-2, #14/16)
NR/23 USF 7-1, lost by 4 at home to Houston (5-3, NR)
8/9 Oklahoma 7-1, lost by 7 at home to Iowa State (6-2, #14/16)
11/10 Oklahoma State 7-1, lost by 13 at home to TCU (7-1, #10/12)
13 Virginia Tech 7-1, lost by 14 at home to Clemson (7-1, #6/5)
3 Ohio State 7-1, lost by 15 at home to OKLA (7-1, #8/9)
22/21 Memphis 7-1, lost by 27 @ UCF (7-0, #15/14)
14/16 Iowa State 6-2
16/15 Auburn 6-2
17 USC 7-2
18 Stanford 6-2
19 LSU 6-2
20 NC State 6-2
21/22 Mississippi State 6-2
23/25 Arizona 6-2
24/NR Michigan State 6-2
25/NR Washington State 7-2
NR/24 Michigan 6-2
Edit: this should be easier to read