I believe that the WCC regular season champs will have two losses, minimum. It's quite possible that there will be a shared title.
If GU, SMC, or BYU can run the table elsewhere and lose only on the road to those rivals, then anything can happen when it comes to tiebreakers. I don't see the Zags being as dominant as last year, if injuries don't have an impact on its rivals. The WCC is always a grind, but it looks like those 3 teams have a solid edge. Pepp lost too much and Santa Clara and USF still lag. This is not the year to have a clunker at Pacific or Marymount.
I expect BYU to have its best OOC record since joining the league. I expect it to beat GU and SMC in Provo. If so, then it will be ranked steadily and comfortably inside the bracketology bubble all season long, leading to an 8 or 7 seed, minimum.