Hard to say, of the nice, higher end ones, cooked on Matt (Phat Matt's) Klose, that was very nice. And YeloNUTZ has a really nice large Gator that was great to cook on, those big cookers are sure fun to run.
I learned on a J&R, nothing like that, to really enjoy a great cook.
I also cooked on a 100 foot, plus or minus, cinder block pit with my dad and the men from the church, NOTHING will ever feel as good as the right of passage when I was allowed to cook with them. Cooking 1500 chicken halves for the main church fundraiser was too cool.
And getting to cook on the Central Coast, with a couple of old men, who had seen the entire evolution of Santa Maria BBQ cooking, from half steers to tri-tips and learning that style of cooking from them was also an amazing experience.