Ph.d Ryan Brewer at Purdue University does an business valuation analysis on a CFB teams (analogous, to what you would do before buying a business), he's been doing this since 2008, here's his 2014 valuation for each team in FBS.
2014 Valuation
1. Texas $875 million
2. Notre Dame $811.5 million
3. Michigan $685.5 million
4. Ohio State $674.8 million
5. Florida $660.8 million
6. Oklahoma $655.2 million
7. Alabama $640.1 million
8. Georgia $581.8 million
9. Auburn $537.6 million
10. LSU $529.8 million
11. Iowa $479.1 million
12. Nebraska $432.5 million
13. Wisconsin $406.4 million
14. Penn State $377.6 million
15. Southern California $342.3 million
16. Tennessee $340.4 million
17. South Carolina $331.6 million
18. Arkansas $315.1 million
19. Oregon $313.7 million
20. Washington $305.7 million
21. Texas A & M $299.8 million
22. Florida State $277.9 million
23. UCLA $246 million
24. Kansas State $243.4 million
25. Clemson $242.6 million
26. California Berkely $230.1 million
27. Texas Tech $229 million
28. Oklahoma State $218.5 million
29. Michigan State $212.9 million
30. Kansas $211.1 million
31. Virginia Tech $203.7 million
32. Arizona State $196.8 million
33. Georgia Tech $184.9 million
34. Mississippi $183.9 million
35. Miami of Florida $180.8 million
36. Minnesota $179.7 million
37. Kentucky $162.9 million
38. Colorado $160.9 million
39. Utah $157.2 million
40. Northwestern $154.5 million
41. Iowa State $152.1 million
42. Oregon State $150 million
43. Stanford $146.4 million
44. North Carolina $131.8 million
45. West Virginia $130.1 million
46. Indiana $125.8 million
47. North Carolina State $119.3 million
48. Purdue $114.6 million
49. Syracuse $105.7 million
50. Miss State $102 million
51. Washington State $101.5 million
52. South Florida $100.3 million
53. Missouri $98.5 million
54. Arizona $97.9 million
55. Illinois $94.5 million
56. BYU $87.5 million
57. Baylor $85.9 million
58. UCONN $85.6 million
59. Boise State $79.6 million
60. Texas Christian $77.3 million
61. Boston College $74.3 million
62. Louisville $72.2 million
63. Central Florida $68.8 million
64. Maryland $66.2 million
65. Rutgers $63.3 million
66. Virginia $54 million
67. Vanderbilt $47.1 million
68. Army $44.7 million
69. Duke $44.7 million
70. Pitt $40 million
71. Cincinnati $36.9 million
72. Southern Methodist $33.6 million
73. Wake Forest $33.3 million
74. Temple $32 million
75. Fresno State $29.8 million
76. Hawaii $25.4 million
77. Colorado State $25.2 million
78. Memphis $25.1 million
79. Marshall $25 million
80. Houston $24.8 million
81. Wyoming $24.4 million
82. UTEP $24 million
83. San Diego State $23.1 million
84. Florida International $22.7 million
85. North Texas $22.1 million
86. East Carolina $21.3 million
87. Troy $20.1 million
88. Rice $20 million
89. San Jose State $18.9 million
90. Florida Atlantic $17.3 million
91. Middle Tennessee $16.9 million
92. UAB $16.1 million
93. Toledo $16 million
94. Ohio $15.7 million
95. Northern Illinois $15.5 million
96. Utah State $15.2 million
97. Western Michigan $15 million
98. Akron $14.9 million
99. Buffalo $14.7 million
100. Western Kentucky $14.1 million
101. New Mexico $13.9 million
102. Eastern Michigan $13.7 million
103. Southern Miss $12.9 million
104. Miami ? Ohio $12.8 million
105. Bowling Green $12.7 million
106. Central Michigan $12.5 million
107. New Mexico State $12.1 million
108. Kent State $12 million
109. UNLV $11.5 million
110. Ball State $11.2 million
111. Louisiana Lafayette $10.4 million
112. Nevada $10.3 million
113. Louisiana Tech $9.4 million
114. Idaho $8.6 million
115. Arkansas State $8.2 million
116. Louisiana Monroe $5 million
2014 Valuation
2011 Valuation
1. Texas $848.3 million
2. Georgia $483.6 million
3. Penn State $446.9 million
4. Florida $421.8 million
5. LSU $397.4 million
6. Michigan $393.5 million
7. Alabama $374.3 million
8. Auburn $359.4 million
9. Oklahoma $343 million
10. Tennessee $321.3 million
11. South Carolina $316.8 million
12. Ohio State $292.8 million
13. Nebraska $284.7 million
14. Texas A&M $245.9 million
15. Iowa $245.8 million
16. Michigan State $239.4 million
17. Arkansas $235.7 million
18. Oklahoma State $155.2 million
19. Wisconsin $153.3 million
20. Kentucky $152.5 million
21. West Virginia $141.2 million
22. Washington $136.2 million
23. Mississippi $136 million
24. Virginia Tech $134.2 million
25. Clemson $131 million
26. Minnesota $126.5 million
27. Colorado $122.7 million
28. Illinois $122 million
29. Arizona State $105.7 million
30. Oregon $102 million
31. North Carolina State $101.8 million
32. Texas Tech $100.4 million
33. Missouri $99.4 million
34. Arizona $93.2 million
35. Georgia Tech $85 million
36. Indiana $77.8 million
37. Oregon State $73.4 million
38. UCLA $66.1 million
39. North Carolina $65.2 million
40. Boise State $64.8 million
41. Iowa State $59.9 million
42. Kansas State $59.8 million
43. Cal Berkley $55.9 million
44. Purdue $55.5 million
45. Central Florida $53.8 million
46. Utah $44.8 million
47. Pittsburgh $44 million
48. Mississippi State $43.3 million
49. South Florida $38.9 million
50. Washington State $32.1 million
51. Louisville $30.4 million
52. Virginia $28.2 million
53. Wyoming $24.7 million
54. Florida State $23.6 million
55. Fresno State $23.1 million
56. UTEP $18.7 million
57. Cincinnati $15 million
58. Maryland $14.99 million
59. Kansas $14.9 million
60. Idaho $14.5 million
61. San Diego State $11.8 million
62. Eastern Michigan $9.1 million
63. San Jose State $6.9 million
64. Florida International $6.3 million
65. East Carolina $6.2 million
66. Troy $3.1 million
67. UAB $2.6 million
68. Louisiana Tech $2.3 million
69. Nevada $1.1 million
70. Bowling Green $876,287
71. Ohio $696,035
72. Arkansas State $0
73. Ball State $0
74. Central Michigan $0
75. Colorado State $0
76. Kent State $0
77. Marshall $0
78. Miami of Ohio $0
79. Middle Tennessee $0
80. Buffalo $0
81. Temple $0
82. Akron $0
83. UConn $0
84. Louisiana Lafayette $0
85. Louisiana Monroe $0
86. Memphis $0
87. New Mexico $0
88. North Texas $0
89. Southern Miss $0
90. Toledo $0
91. Western Kentucky $0
92. Western Michigan $0
93. Rutgers -$19
94. New Mexico State -$2.2 million
95. Houston -$4.3 million
96. Utah State -$7.1 million
97. UNLV -$13.1 million
98. Hawaii -$18.7 million
99. Florida Atlantic -$22.2 million
100. Northern Illinois -$32.3 million
2011 Valuation