I went ahead and looked up the ranking of the defenses that LSU and Oregon played this year. Oregon played only two teams ranked in the top 75 defenses, Utah at #16 and Oregon State at #36... by comparison LSU played TEN teams ranked in the top 75 defenses.
LSU's schedule by defensive rank:
Texas A&M #10
Alabama #17
Florida State #20
Missouri #40
Miss. State #43
Arkansas #48
Auburn #51
Army #56
Ole Miss #60
Florida #71
Georgia State #119
Grambling N/A
Avg. [#48]
Oregon's schedule by defensive rank:
Utah #16
Oregon State #36
Hawai'i #76
Washington State #81
Texas Tech #89
Arizona State #93
Washington #96
California #109
USC #123
Colorado #129
Stanford #132
Portland State N/A
Avg. [#89]
LSU's schedule by defensive rank:
Texas A&M #10
Alabama #17
Florida State #20
Missouri #40
Miss. State #43
Arkansas #48
Auburn #51
Army #56
Ole Miss #60
Florida #71
Georgia State #119
Grambling N/A
Avg. [#48]
Oregon's schedule by defensive rank:
Utah #16
Oregon State #36
Hawai'i #76
Washington State #81
Texas Tech #89
Arizona State #93
Washington #96
California #109
USC #123
Colorado #129
Stanford #132
Portland State N/A
Avg. [#89]