Here's the bar I use for pastrami:
Langer's pastrami served on the freshest rye bread I've had. I hear that the rye is started elsewhere and finished off at Langer's but of course that is hearsay.
The description of Langer's pastrami is at the top of their menu:
It's not just the thick hand cut slices... it's the flavor and dark crusty bits that makes Langer's pastrami sandwich stand out.
Today's sandwich was quite fatty... and delicious.