My hierarchy is always:
1) Do we play the team and thus give us the ability to control our destiny against them.
2) How likely are they to lose another game.
Personally, I think it's MUCH better for OSU's odds if Clemson beats A&M. Clemson I just consider a locked spot in the CFP, even if they lose to A&M they aren't likely to lose another game.
On the other hand, an A&M win is really not good. That would pump up the SEC, but also create a problem with A&M specifically, they face 5 top 10 teams this year, if they beat Clemson and somehow go 3-1 against Bama / UGA / LSU / Auburn, they can be sitting at home during the SEC title game with a spot on virtual lock down.
As always, the moral of the story is an undefeated OSU is getting in, but last week was bad for the SEC, they don't need to get pumped back up with A&M beating Clemson, Bama crushing all foes is much better for them in terms of not opening up a 2nd spot for an SEC team, vs somehow they only lose ~2 games in round robin between each other, have the final poll full of top 10 SEC schools and prop up their 2nd entrant.
As it stands, something drastic would have to happen for Clemson and the SEC champ to not be in the final field, the rest of the country is playing for 2 spots.