There wasn't a lot of feel-good moments in BB13 because it was IMO, the nastiest series we've ever had, but that was definitely the best moment that year.
I think there's been a lot nastier. The first week of BB7 comes to mind. But, yeah, some of these housemates were very unpleasant, but Deana had the last laugh by being more popular than all who treated her like crap.