What is your favorite sandwich?

I see that this question hasn’t been asked since 2010, and we’ve had quite a turnover of Jellies since then, so I shall ask it again, today.

The reason I’m asking is because I recently found This Sandwich and it got my mouth to watering.

So folks, tell me about some of your favorite sandwiches. Maybe it’s one that you invented yourself, maybe your Mom used to make a particular sandwich for you when you were growing up, or maybe you ate a really great sandwich in a restaurant recently. Tell me about it.