The tiebreaker for the top seed in the SECT is winning % vs 3rd place, then 4th, etc. So, we are rooting against Vandy and for LSU this week. And, if KY beats South Carolina, we'll be rooting against the Gamecocks in their final game.
If they based it on strength of schedule, we'd already have the tiebreaker. Unless I made a mistake, the LVs play KY, Arky, and Vandy twice, while KY plays the LVs, MSU, and Bama twice. MSU and Bama are towards the bottom. Arky and Vandy both have winning records in the league.