I'm easy to please when it comes to sandwiches and my favorite is pastrami sandwiches.
I also like Subway's meatball sandwiches and pastrami sandwiches.
My wife bought a sandwich at Jersey Mikes which wasn't their signature Philly type sandwiches. It was so good, it had a vinegar type dressing and I believe it had turkey, ham and pastrami with a bunch of greens. Wow, dat was broke da mout.

I don't have a favorite place. I eat sandwiches from all over and generally they all are good. Like I mentioned, I'm easy to please. Two slices of bread, mustard, lettuce, tomato, and pastrami, ham, or turkey, and I am happy.
Oh yeah, if can gotta have bell peppers. I love the crunch.