a tough question. it is so hard to pick one.
when rankan wed for real, that whole bit is my favorite, from the time they walk down the stairs to the time they both do the namaste.
but since one has to pick a moment, i have to say when ranbir puts the mangalsutra around kanyas neck and then straightens it so it settles on her nicely. it is a nanosecond scene.
i have to add this one too, coz one does not go without the other in my eyes at least.
when ranbir feels kanyas maang with sindoor.
watching these scenes i perceived a sense of warmth and contentedness between rankan . also they both are smiling away.
rankan made the whole wedding seem real and natural.