Looking at ARWU world rankings (which correlates with the kind of broad research base the PAC likes)
2. Stanford
4. Cal
12. UCLA
15. UW
34. CU
39. Texas
51. USC
82. Rice
86. Arizona
87. Utah
88. Arizona State
151-200. Oregon State
151-200. Houston
201-300. Oregon
201-300. Washington State
301-400. Oklahoma
301-400. Oklahoma State
301-400. BYU
>500. TTU
The TexaHoma additions wouldn't exactly excite PAC presidents, and I think Rice is an option that would take some of the bitterness out of those additions, if they were to happen.