I have commented on the best I have seen on several occasions. I think it is difficult to really say what was the truly best I have seen after nearly 40 years of watching, participating, judging, and training judges. But I do have some opinions and I would like to pass on some impressions from this span of time. Over the years, I have seen some pretty remarkable flights. By not mentioning the several individual pilots in this group, I do not intend to slight the many superb flyers that I have seen and have the highest respect for their ability. There are several that stand out in my mind.
The first time I saw a Nationals finalist caliber flight was in 1964. I had flown in competition for just over a year. I was at the Air Force meet and saw this guy flying the most remarkable pattern I thought possible. I stood in awe as I watched. Dick Mathis was training the judges for that contest. Dick would later post the highest flight score at the Nats, and finished 4th because his airplane did not receive very many appearance points with its clear dope and tissue finish (like a FF ship - I thought it was gorgeous).
As has been mentioned earlier in this thread, when Bob Baron was at the Team Trials in the early 80's, there was no question he was the class of the field. (I ws the CD for the Team Trials during tht period.) I do not think that I have ever seen an individual dominate the field throughout a competition like he did in the 81 Team Trials. Also, I do not think anybody on the field questioned his scores or his place. He had it all together. Sizes, shapes, bottoms were all there. His corners were as good as anybody on the field. When he won the Nats in 66, his first flight in the finals round was certainly memorable in a positive way. (I was a judge at the 66 Nats.)
Bill Werwage has flown some very remarkable flights. When he is on, his flights could be used as a model for training films. His flights at the 2002 World Championships under the most adverse wind conditions I have seen were outstanding (I was not at the 03 Nats). Sizes, shapes and bottoms were all there. His corners were some of the best at the Championships. The wind he had to fly in on two of his three flights was as severe as any during the finals including the flights of several other competitors who were allowed to refly their officials when the wind blew lawn chairs across their circle. (There were not any more lawn chairs to blow away when Bill had to fly in similar or ever worse conditions.)
When Bob Hunt was placing at the Nats, getting on the team, winning the Nats and the World Championships (I was a judge when he won in 78), it was like watching a clinic. No major errors, anywhere.
Right at the top of my list is Bart Klapinski when he won the Nats in 67. It was all there. He flew the right sizes, shapes, bottoms and corners. Maybe I was still not very experienced in this game but his flying that year still remains in my mind as some of the best I have seen. (Just wait until he gets a serious stunt ship of his own for competition in the near future. He is still pretty good.)
The top of my list still goes to Les McDonald. When he won the World Championships in 82, there was simply none any better. He dominated the contest circle for several years. When he came out to fly, you knew you were going to see a show. Nice looking aiplane, matching flying outfit, not flashy, but he gave a totally professional presentation from the time the airplane came on to the circle until it landed. I think that all of the fliers mentioned here had (or have) the ability to make their rulebook or near rulebook size patterns looks smooth. In my opinion, the flights of Les McDonald in those years were a cut above and were the model of a 45 degree pattern made to look smooth and effortless with great corners and consistent bottoms. He made it fun to watch and he made it look easy.
Just my own unbiased opinion.