I got the years slightly wrong, it was more like 2007-2010. It was an insane run, and the player OV was from 2006-2010 was uniquely different than the rest of his career. OV can't be young forever, and he relied more on his athleticism than other players to play at that level. I just don't like this aspect of judging an all time list without having criteria attached to it, because that level that OV hit was a level that Beliveau couldn't sniff, and should be acknowledged.
First of all this is an all time ranking and that means everything gets considered not just peak play.
Second point is let's flesh this out then.
Really sure he scored a ton of goals and he did have the most points over this time period.
The thing is that he scored a total of 19 more points than Crosby but he did it in 25 more games.
Lafleur does better year, nearly 100 points more than dionne and Clarke but Clarke was stellar defensively and Dionne had very little support compared to Guy but let's leave it there for a minute.
Any of Beliveau's prime years
If by you mean consecutive 4 year segments sure as Jean suffered some injuries but I usually take 3 consecutive years for peak and 7 fro prime but since you said any....
55-56 Jean wins the Art Ross by 9 points over Howe
58-59 Jean is 2nd in scoring to linemate Dickie Moore by 5 points but misses 6 games that year
56-57 Jean is 3rd in points with 84 in 69 games , 1 point behind Ted Lindsay and 5 behind Gordie Howe. (Howe BTW probably has a better peak than Lafleur and Ovi here from 51-54 with a 77 point spread over his libnemate Lindsay and 90 points over Richard.
60-61 Jean is second in scoring behind linemate Geoffrion who had a career year with his line of 64-50-45-95
The rest of OV's prime years
Which ones are those exactly?
The rest of Lafleur's prime years
That's only 2 more years on those Hab dynasty teams 78-79 he was 3rd in scoring and 79-80 where he was 3rd again besides that he wasn't really an uber elite player anymore.
Is how I would rank them, and I think thats pretty universal. If Jean is considered to have a better career than OV and Lafleur thats fine, but we should at least be able to point out that at their best Jean was the worst of the 3.
I think that's a very subjective comment as Jean was competing against Howe for the most part and had injuries and Ovi wasn't a hell of alot better than crosby over that time period just played in 25 more games.
Like stated upthread I'd take both Jagr and Howe's 4 year peaks over Guy or Ovi.