I would think if we win the West even with our RPI being what it is - we host. I've read where some say we might not.
Winning the West will have very little impact. If we just get on fire (5/6 from UT, UA and get to Sunday in Hoover) we could host and would probably win the West too. Our RPI would be low 20s I guess. I want to say last year the regional hosts were the top 16 RPI teams.
I would think if we win the West even with our RPI being what it is - we host.