I say chicken because the one thing I've noticed in these posts is, seems like first timers get very frustrated tending to a smoker all day and or night and they pull the butt or brisket way to early. A chicken can be done in four hours.
I'm no expert by any stretch, but 15 years ago when I got my ECB, the first thing I did was a chicken, cob corn, and taters. I haven't looked back since. I love anything on the smoker, but my favorite is poultry by far. And if I'm looking to impress, I do a couple fresh butchered chickens and end up wishing I had done more. Even the women that normally eat like mice when they're guests in someone else's house, can't get enough. We have a skinny friend. When I say skinny, I mean like anorexic. She puts away half a chicken by herself. When we go out to eat, she eats a salad. And not very much of it.