Phunnels are great IMO. I get great airflow, huge clouds, and about 1-2hr sessions with a small. The best part though is that the juices dont go down your stem. Ive always seemed to get good flavor with my phunnels as well. If you play around with the heat management, you'll have yourself a perfect smoke. I also have a vortex but i cant get the heat management quite right on it yet
even though ive only smoked out of it like 2wice.