My smart a$$ answer is my favorite to smoke is meat and my favorite beer is cold - I'm a simple man. My other answer is - I don't have the experience that many others have, but so far I'm torn between pastrami and stuffed pork loin.
I like to smoke a whole sausage roll and have it for breakfast. I just unwrap it, put in the temp sensor and pop it in the egg till it comes up to temperature. I serve it with biscuits which I also have baked in the egg at the same time.