I mean, the PAC has 3 legit national title contenders (UCLA, Oregon, Stanford) right now, two traditional powerhouse schools with the resources to compete with anyone coming out of downswings (Washington, USC) and a pretty solid middle tier (ASU, Arizona, Oregon State.
Compare that to the B1G — two legit title contenders (us and MSU), a traditional powerhouse mired in mediocrity (Michigan), and 3 good but never great teams (Wisconsin, Iowa and Nebraska). Penn State might be good again down the road, but the effect of recruiting penalties take a long time to wear off. The the PAC is definitely doing better than the B1G right now.
And the other conferences? ACC is super thin past FSU and Clemson, the Big 12 is essentially in the same boat as the B1G (OU and Baylor as title contenders, Texas as the mediocre powerhouse, Okie State and K-State as the good but not great teams). Looks the PAC more or less deserves the title of 2nd best