How could Ovechkin not have been better period in 2010? He matched Crosby's points in 9 fewer games with 1 less goal, was +45, and beat Crosby in Hart and Pearson voting. In the playoffs he had 10 points and was +5 in 7 games. Ovechkin was an absolute monster at that time. He actually achieved the productivity that people extrapolate for Crosby based on his half and quarter seasons. Unlike Crosby, Ovechkin did it in consecutive games and consecutive seasons without rest, including playoffs.
I also don't see why Crosby deserves full credit for half and quarter seasons. Regardless, no way was Crosby better than Malkin in 2012. Malkin's 2012 season is better than any season Crosby has ever had, by a clear margin. To just imagine that Crosby could have been even better is massively unfair to Malkin.
And Ovechkin won the Hart in '13 with more than twice as many goals as Crosby so I don't see why lumping in '13 is equitable either. If this were just an extension of sustained consistent dominance, then maybe, but at that point Crosby had not been the actual best player for 6 years. So you wouldn't be extending it, you'd have to be claiming Crosby's half and quarter seasons firmly established him as the best player - which is pretty absurd.
You just seem to be lumping in a bunch of seasons, but it isn't warranted. I just don't get the need for extrapolations and speculations for things that already happened. Recently someone on HF complained that the phrase "actual results" biased a poll against Crosby in Ovechkin's favor - as if this was unfair. /facepalm