If its a popularity contest, why is a 2 loss Iowa State ranked 7th? If that was the case, they wouldn't be ranked in the top 20, let alone 7th.
If its a popularity contest, an undefeated Cincinnati team would be ranked somewhere around 15th just like every other G5 in years past.
If its a popularity contest, they somehow would have found a way to put a 4-0 USC team, starving for needed national attention, in the top 8.