I would have to say Ringnecks. They fly like a fighter jet on amphetamines,are aerobatic,decoy well SOMETIMES, will give you repeated passes, and, they eat pretty good too. A buddy and I had to experience of a lifetime watching 20-30K ringers come into an impoundment right before dark, one day. They would start off as tiny specks in the air,fold their wings, then drop like rocks into this place, they would snap their wings open at the last second and juke down to the water. It sounded like a squadron of jet fighters when a large group came in. It took over an hour for the whole group to get in. We went back the next morning. We have to park close to a mile away and walk in. When we parked,we could hear moving water and as we got closer,we realized it was all of these ringers making the racket. It sounded like a river flowing due to all the water they had moving. We walked in and got close enough to them that we could have grabbed a few. When they started heading out, the ground literally shook. Its not something I'll soon forget.