Good question. I think if you are a UF backer, you are looking at how UF's pass defense has been significantly better than LSU's pass defense against stronger SEC opponents...
LSU:
MSU (#28 rated passing offense nationally - all games)
Auburn (#113 rated passing offense nationally - all games)
South Carolina (#108 rated passing offense nationally - all games)
combined stats vs. these three teams (all stats factoring sacks as passing yards):
58.3% completion
5.7 yards per attempt
9.8 yards per attempt
195 yards per game
5 TD
2 Int
9 sacks, 58 yards (3 sacks per game)
UF:
Ole Miss (#11 rated passing offense nationally - all games)
Kentucky (#64 rated passing offense nationally - all games)
Tennessee (#81 rated passing offense nationally - all games)
Missouri (#93 rated passing offense nationally - all games)
combined stats vs. these four teams (all stats factoring sacks as passing yards):
50.1% completion
5.6 yards per attempt
10.9 yards per attempt
170 yards per game
2 TD
5 Int
16 sacks, 138 yards (4 sacks per game)
While UF currently ranks as #47 nationally, you can throw that out the door with the suspension coming into play (if Harris comes in and passes for 200+ that would probably surprise a few folks...whether he could or not is irrelevant since they didn't earn #47 with him as the primary QB).
On the flip side, however, LSU represents the worst passing offense that UF has seen so far (technically ranked #122 nationally) - which of course is a little deceptive since they haven't had to rely on their passing game. But the point being, if UF can make LSU one dimensional, then it all boils down to trenches, tackling, and turnovers. UF can't win with the kind of tackling they had against UT.
If you are an LSU backer, you're pointing to the fact that UF has not been very good against the one rushing team with a pulse they faced (#21 Tennessee averaged 5.75 yards per carry - sacks removed) and LSU will be, by far, the best rushing offense that UF has faced this year. LSU fans have to be licking their chops at the missed tackles by UF in that game, but whether or not that was just a bad game for UF or the result of facing a better rushing team remains to be seen.
-etc