There's another thread in which people are arguing the power rankings. My suggestion is- give up.
Are the Lions #1... or #5?
Are the Cats # 2,3,4,5, or 6?
Montreal is #1, 2, or 3.
Calgary drops how many placings.
The Riders climb is stonewalled and they go back to #7 maybe... but the Argos beat the #1 team so maybe they are now #7 or 6, or 5, or even #1? (Yeah... I'm just kidding with this one.)
Pick 'em. Each week there are blowouts by teams that were blown out the week earlier. I've stopped looking at the rankings even though I have been a regular reviewer of them.