Okay, I am both HH Diamond and Priority Club Platinum. I cant really see any major benefit of being Plat with PC, some bonus points. No real benefit of upgrades or breakfast, etc. (Whereas Hilton gives breakfast to Gold and Diamond, and Executive Lounge Access to Diamond, etc.) Don't get me wrong I love the earnings potential at PC brand hotels, but my HHonors status is the one I strive for first at the beginning of the year.

PC