I can’t really decide on this one, it’s kind of a dead race between two scenes (or rather a quote and a scene).
“Well, don’t expect us to be too impressed. We just saw Finnick Odair in his underwear.” From Mockingjay p. 82
“Really, the combination of the scabs and the ointment looks hideous. I can’t help enjoying his distress.
“Poor Finnick. Is this the first time in your life you haven’t looked pretty?” I say.
“It must be. The sensation’s completely new. How have you managed it all these years?” he asks.
“Just avoid mirrors. You’ll forget about it,” I say.
“Not if I keep looking at you,” he says.”
From Catching Fire p. 316
I find both of them hilarious.