I just finished my dinner not long ago and devoured an amazingly juicy and tangy BBQ Caramelized onion burger! They are my favorite! Do you have a favorite burger?
I prefer just a simple hamburger with some lettuce, cheese, onions, and tomatoes, nothing fancy really.
Yum! You can't go wrong with it, can you.  Do you have a particular blend of meat you like to use?
I like using 85/15 ground meat, or maybe 93/7 ground meat, I'm not one to use the higher fat content ground meats that often.
I agree with you there.  I'm not into using fatty meats because I like the toppings to shine and I also like my beef patty to be more toothsome.  I always make my own toppings from scratch.
You sound well-versed in hamburgers and cooking, you might already know then that the term hamburger derives from Hamburg, Germany's second-largest city.