Bold #1-The Flyers defeated a Soviet club team, not the Soviet National Team. The WHA Jets were the first to do so.
"HC CSKA Moscow was one of the most dominant sports teams in history, winning the Soviet championship for 13 consecutive years between 1977 and 1989."
In other words, it was more or less the exact same team. CSKA Moscow was the Soviet Club. It's like saying the Flyers played the 1985 Oilers without Kevin Lowe, and the Jets played the 1985 Oilers with Kevin Lowe.
http://en.wikipedia.org/wiki/1976_Philadelphia_Flyers%E2%80%93Red_Army_game
Bold #2-The WHA Jets had a winning record against NHL teams in exhibition games
http://www.whahockey.com/whavsnhl.html
I had originally obtained info from that the WHA of 33-27-5. Perhaps the owner of the site had done research, and added games since I last checked years ago. At the time it had stated the Jets record was 3-5-2. I have no reason to dispute the current stats you have used.
Having said that, there were still 32 professional hockey clubs in the mid 70s. The point I am trying to make is the talent pool wa so thin that the game itself was watered down from 1966-67, when there were only 6 pro hockey teams. As I had said before, there were only around a dozen Scandinavians in North America playing hockey. I don't have the WHA figures, but in 1975-76, there were 446 Canadians, 36 Americans, 4 Swedes, and 5 players from other countries playing on 18 teams. That means 91% of NHL players were Canadian.
source:
http://www.quanthockey.com/nhl/nationality-totals/nhl-players-1975-76-stats.html
Compare that to 2013-14, where there are 510 Canadians, 241 Americans, 78 Swedes, 37 Czechs, 34 Russians, 32 Finns, 14 Slovaks, and 37 from other countries. In total, Canadians now make up roughly 1/2 of all NHL players, despite the population increasing by at least 10 million in the last 30 years.
source:
http://www.quanthockey.com/nhl/nationality-totals/nhl-players-2013-14-stats.html
The point I am trying to make is the talent pool is far greater and more abundant than at any time in history. The WHA Jets played when the number of pro hockey teams ranged from a high of 32 (1975-76) to a low of 24 (1978-79). Today, there are 30 pro teams. Today each club can select an player from any country in the world. That was not the case in the 70s, when the best Russians and Europeans were not available, save for a half dozen Swedes who mainly came to play for Winnipeg.
The Jets of the WHA deserve credit for being the first club to scout players from Europe, but as I said before, in my opinion, were not as good of a team as the 84-85 NHL Jets or the Jets of today.
Bold #3-Sjoberg was not just a good or past his prime, but one of the best defensemen I have ever seen play in any league. He played for the Jets the year he turned 30 and was named best defenseman in the World Championships.
That's your opinion. That does not make it fact. In my opinion, there were far better defensemen in the NHL at the time. Sjoberg played for the Jets from age 30-36. Besides, it is well known that Canadians don't really pay that much attention to the World Champions compared to Europeans, let alone send their best players to it (they are usually playing in the NHL Playoffs). I mean how many times have Gretzky, Lemieux, Hull, Messier, Bourque, Orr, Esposito, Lafleur, Bossy, Potvin, Trottier, Roy, Dryden, Clarke, Yzerman, etc. played at the World Championships, if ever?
Bolds 4&5-From Wikipedia:
In the summer of 1978, Nilsson and Hedberg signed with the NHL's New York Rangers for $2.4 million, one of the first open acknowledgements that the quality of the WHA was on par with the NHL, making a merger with the WHA possible just one season later.
Hedberg had an extremely successful NHL career. Ulf Nilsson's was cut short by injury. Kent Nilsson starred for the NHL Flames, scoring >100 points one year. A number of others played subsequently in the NHL.
Look at Hedberg and Nilsson's stats in the WHA compared to the NHL. Ulf Nilsson's lowest scoring season in the WHA was 114 points. He averaged roughly 120. In his best season in the NHL, Nilsson had 66 points. Hedberg played 4 seasons with the Jets. His scoring range was 100-131 points, averaging roughly 120 points. When he played in the NHL, Hedberg's best season was 79 points, and averaged about 70 points after. I do not believe he ever finished in the top 20 for scoring in the NHL.
We are creating hockey history in Winnipeg at this very moment and that is a wonderful thing. But history did not start with the Jets 2.0 and may not end there. You should be very careful to research your facts since you weren't there for the WHA Jets, because you are probably offending quite a few people who were.
Actually, you are taking this way too personal. I'm sorry if you have a big emotional attachment to the Jets of the WHA, and that is what is contributing to your belief that the Jets of the 70s were the best Jets teams ever iced. IMO, they were not. We can agree to disagree. It's called democracy. Besides, the OP had asked what was the best Jets team in the NHL, not the WHA.