Texas A&M 8-7
Oklahoma State 7-8
Texas Tech 7-8
Iowa State 4-11
Scenarios by seed...
1st and 2nd: If Texas wins, it is the top seed. If the Horns lose, they are still the top seed if KU loses in College Station.
3rd: With Baylor's loss tonight, K-State can clinch the three seed with a win Saturday at Iowa State. Baylor could be the three, four or six seed, depending on how the games play out. Neither Oklahoma nor Texas A&M have a shot at the three seed.
4th, 5th and 6th: If K-State loses Saturday and Baylor wins, the Bears are the three and the Cats the four. If not, it gets really interesting among Baylor, OU and A&M for these three spots.
Assuming the three teams tie, I think the pecking order is OU, A&M and then BU. Oklahoma swept Baylor and split with A&M, while A&M and BU split the season series. Against divisional foes, Oklahoma has the clear advantage, followed by A&M and then Baylor.
So anyway. On Saturday, OU plays Missouri in Norman, A&M plays KU in College Station, and Baylor travels to Texas Tech. The Sooners clearly have the advantage here, and there's at least a chance we could end up with a top six seeding that looks like this: Texas, KU, K-State, Oklahoma, Texas A&M, Baylor
7th, 8th, 9th, 10th: The next teams in line are Oklahoma State, Texas Tech, Nebraska and Missouri. Respectively, those teams finish up @ Texas, home to Baylor, home to Colorado, and @ Oklahoma. It would appear Nebraska has a good chance to finish 7-9, while Texas Tech has a good chance to finish 8-8. Oklahoma State is likely looking at 7-9, and Missouri probably will be 6-10. As such, we could be looking at the 7-10 seeds breaking down as follows...
Texas Tech, Oklahoma State (tiebreaker over Nebraska), Nebraska, Missouri
11th: Iowa State
(I'm being lazy here, because technically Colorado could catch--and surpass, I suppose--Iowa State, but it doesn't really make that much difference to me)
Thus, if I had to make a best guess right now, here are your probably Big 12 matchups. Of course, if March has taught us nothing over the years, it is to expect the unexpected.
8/9 Game, 11:30 a.m.: Oklahoma State vs. Nebraska
5/12 Game, 2:00 p.m.: Texas A&M vs. Colorado
7/10 Game, 6:00 p.m.: Texas Tech vs. Missouri
6/11 Game, 8:30 p.m.: Baylor vs. Iowa State
1 seed, 11:30 a.m.: Texas vs. OSU/Nebraska winner
4 seed, 2:00 p.m.: Oklahoma vs. A&M/CU winner
2 seed, 6:00 p.m.: KU vs. Tech/Mizzou winner
3 seed, 8:30 p.m.: K-State vs. Baylor/ISU winner
That assumes a lot, obviously. But it at least gives us an idea of what we may be facing.