The way that I look at it, the three most valuable teams left in the Big12 are Oklahoma State, Texas Tech, and Kansas. Here is my breakdown of each:
1. Iowa State - Iowa State is not as attractive as people think. It isn't in a big media market. The B1G already has Iowa which is the more successful school in the state. Iowa existing hurts Iowa State's ability to be in a major league. Matt Campbell really goofed up by not jumping to another open job like Texas, Tennessee, South Carolina, etc. this off season.
2. Kansas - Basketball, Basketball, Basketball. Kansas also is a bigger state than people think. Kansas will bring $$$ for Basketball. A Power 5 league will get them. I am guessing the B1G or Pac12.
3. Kansas State - They will try to follow Kansas. They have had some success in modern history in football but the brand and fanbase just isn't there. This team might end up in American or Mountain West. I just don't see them bringing any value. They might be in the weakest position of all the Big12 programs.
4. Baylor - Just won Basketball National Title so they appear attractive at first glance. However, this school has a smaller fanbase, a lot of scandals, are far away geographically from a major Power 5, and won't bring Texas like people think. They are in Texas and Texas A&M's backyard which will mean they will always be in the shadows of those two titans.
5. TCU - Has same problems as Baylor but maybe even amplified. Although competitive in football, they just don't have the fanbase or tv support. They will be dwarfed by Texas-Texas A&M SEC Monster.
6. Texas Tech - They are a little different in their Texas brothers in that they are in a very different part of Texas and have created more of a regional fanbase as a result. Because they are the main game in Western Texas, they have a larger fanbase. They have been competitive in football and basketball. I think they are attractive enough to get a Power 5 invite.
7. Oklahoma State - Very successful program in all sports with a lot of investment lately. If they were geographically closer to another region, they would be picked up in heartbeat. Sure they will be in the shadow of Oklahoma but I think they are probably the most attractive and competitive team left in the Big12
8. West Virginia - ACC or bust. I think it is 50/50 on whether they go to ACC or American. They were always an odd fit in the Big12 anyways. I wish the ACC would pick them up as that makes the most sense from creating rivals.