Per Rivals:

Comparing the five common opponents first.

TEXAS A&M--Mizzou by 7 at home, Auburn by 4 on the road (EVEN)

OLE MISS--Mizzou by 14 on the road, Auburn by 8 at home (MIZZOU)

ARKANSAS STATE--Mizzou by 22 at home, Auburn by 29 at home (EVEN)

TENNESSEE--Mizzou by 28 at home, Auburn by 32 on the road (AUBURN)

GEORGIA--Mizzou by 15 on the road, Auburn by 5 at home (MIZZOU)

Now I go through the other seven games. We'll start with each team's toughest game and progress to its easiest

GAME ONE

Auburn beat Bama by 6 at home
Mizzou lost to S. Carolina by 3 at home

EDGE: AUBURN

GAME TWO

Auburn lost at LSU by 14
Mizzou won at Vanderbilt by 23

EDGE: MIZZOU, though it's not huge because at LSU is quite a bit tougher than at Vandy

GAME THREE

Auburn beat Mississippi State by 4 at home
Mizzou beat Florida by 19 at home

EVEN. MSU is a little better, Mizzou won by more

GAME FOUR

Auburn won at Arkansas by 18
Mizzou beat Toledo at home by 15

EVEN. Hogs didn't win an SEC game. Toledo wouldn't have been worse. Maybe a slight edge to Auburn

GAME FIVE

Auburn beat Washington State by 7 at home
Mizzou won at Indiana by 17

EDGE: MIZZOU by a bit. Neither team was very good.

GAME SIX

Auburn beat Florida Atlantic by 35 at home
Mizzou beat Kentucky by 31 on the road

EDGE: I guess Mizzou, but not by much because Kentucky is terrible

GAME SEVEN

Auburn beat Western Carolina by 59 at home
Mizzou beat Murray State by 44 at home

EVEN. I'm not gonna decide which of these terrible teams is less terrible.

Mizzou has the edge if you break it down game by game. That said, Alabama is MUCH better than anyone Mizzou played and LSU is about on a par with South Carolina (maybe a small small small step worse, but in Baton Rouge, probably not).