No, I'm claiming that his international record is AT BEST about as good as Kapustin's or Hlinka's... and that's 'nonsense' according to you. Oh well.
Hlinka played longer on the national team, was a key player longer than Novy, played more tournaments and scored more points. Hlinka also got some all-star support and praise from the media in tournaments where he didn't score that many points (1971 WHC specifically). And whereas you could not claim that Novy at any time was CSSR's best player (internationally), you could at least claim that Hlinka was the best Czechoslovak player in 1978-79.
And since you mentioned scoring, Kapustin is well ahead of Novy, statistically, and his all-star nods are from considerably better World Championships (1978, 1981) than Novy's in 1976 (= alongside the 1975 tournament, arguably the weakest WHC played in the whole 1970s/1980s, quality-wise). I would also note that Vladimir Petrov played in neither the 1976 Canada Cup nor the 1976 WHC.
No, IMO Novy doesn't belong to the top 20; or belongs only if one puts heavy emphasis on domestic careers. In that case, of course, Kharlamov should not be as high as #3 nor Martinec #8.
I´ve adressed this issue during discussion that Novy was stucked behind the most talented crop of centers Czechs ever had. In the 1st half of 70s CSSR depth at C was maybe even better than Soviets´. Heck, Ivan Hlinka had to play mostly RW at this period yet. Point is that Novy was little bit younger than all of his competition so he really got a chance until he was inarguably one of the best forwards of CSSR. If you look at domestic scoring in 1st half of 70s, he was pretty much on par with other centers not named Nedomansky, possibly even better. But he wasn´t proven internationally as older guys like Holik, Kochta, Farda and Hlinka himself (and Nedomansky of course). Novy broke through top 10 scoring list in 1971 when he was 20 - exactly like all other Czech forwards added to the final list.
When Novy finally made it in 1975, he and Hlinka (and Martinec) were all at their peak and results clearly favour Martinec then Novy and then Hlinka.
WC 1975, Novy scored 8 points (4+4) in 10 games - 4th best in his team (behind Martinec, Stastny, Novak).
OG 1976 - 9 points (7+2) in 6 games - 2nd best in his team (behind Martinec).
WC 1976 - 15 points (9+6) in 10 games - 3rd best in his team (behind Martinec and Novak) and 3rd best in overall scoring; All-star center.
CC 1976 - 8 points (5+3) in 7 games - the best in his team and 4th best in overall scoring; All-star center and team´s MVP.
WC 1977 - 16 points (6+10) in 10 games - the best in his team and 6th best in overall scoring (tied with Martinec).
Novy can easily claim that he was the best CS player in 1976-77, his Golden stick from this year is a testament for it. (and then in early 80s too, but within lesser competition...)
Hlinka can claim the same in 1978 obviously, but not sure about 1979, he was 7th in GS voting...
Hlinka vs. Novy head to head:
Overlapping international tournaments (1975-1981), Novy outscored Hlinka 6 times, Hlinka outscored Novy 2 times.
Overlapping domestic seasons (1971-1981), Novy outscored Hlinka 7 times, Hlinka outscored Novy 4 times.
Then there is his all-star domestic record, team success...
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My issue is rather opposite. I wonder if we haven´t underrated Novy. I mean, 6 scoring titles and 3 Golden sticks (= 6 "Art Ross trophies" and 3 "Hart trophies") trumps such trophy record of any other Czech forward. Compared to Martinec (1 "Art Ross" and 4 "Harts"), Nedomansky (3 "Art Ross", 0 "Harts"), Hlinka (1 "Art Ross", 1 "Hart")... Novy looks like clear winner by this view.