Well, no contest: Paige asks, Philip and Elizabeth actually tell her the truth.

Runners up, now, these are galore. The fucked up love scene which was the dentistry. Gruesome luggage body disposal. Philip gets out of sex with Kimmy via praying with her (and actually speaks emotional truths). Elizabeth enforces a slow death while emotionally bonding with her victim and gets told she's evil. "Sometimes", and Philip remembers sex training. Clark demasks in front of Martha into Philip. Paige on the phone with Paster Tim.

But the Philip, Elizabeth, Paige hour of truth telling still wins above them all for me.