The question posed: “If you could go back and visit one memory which would you choose?”

Well that’s a silly question… Anyone care to venture as to why?

Simply because visiting memories isn’t something you have to choose one of-they are memories, you can visit them all… That’s what the concept of a memory is…

I suppose the asker really meant to phrase it to mean “If you could relive or reexperience one memory which would you choose?”
That’s more of a loaded question.  Would it have the butterfly effect, would I know I was reliving it, and would I have free will to make different choices, actions, or statements?

This is way to heavy for a night like this. Save this question for later. It’s getting quite sad and scary at the same time.