It's not reasonable to think that the number of games played isn't considered when awarding the Hart/Lindsay. Noone disputes Jagr's level of play in 99/00 or Mario's level of play in 92/93 despite the small gaps in points over their competition. Both players get the benefit of the doubt in seasons where they missed 10/12 games. OV doesn't win the Lindsay in 09/10 based on his raw numbers nor does Crosby win the Lindsay in 2013 and barely lose the Hart.
Both had two seasons where they won both the Hart and Lindsay and were indisptuably the best/most most valuable player. Ovechkin has a season where he won the Hart and another where he won the Lindsay, Crosby has another season where he won the Lindsay.
Give Ovechkin the edge, 4 to 3, in peak seasons.
Crosby has two more seasons where he was nominated for both the Hart and the Lindsay. Ovechkin has one more season. Crosby has three more seasons where he was nominated for either the Hart or Lindsay, Ovechkin has one more season where he was nominated for the Lindsay.
Give Crosby the edge, 5 to 2, in close to peak seasons.
I would rate their best seasons as:
Tier One:
Ovechkin 07/08
Tier Two:
Crosby 06/07
Crosby 12/13
Crosby 13/14
Ovechkin 08/09
Ovechkin 09/10
Tier Three:
Crosby 09/10
Crosby 15/16
Crosby 16/17
Ovechkin 12/13
Ovechkin 05/06
Ovechkin 14/15
Tier Four
Crosby 18/19
Crosby 20/21
Crosby has five notable other seasons with with a Top 3 in scoring and/or a Top 10 in Hart voting plus his rookie season and his 10/11 season. Ovechkin has three other notable other seasons with a Rocket win and a Top 10 in Hart voting.
Give Crosby the edge, 5 to 3, in prime seasons.
Crosby has two Conn Smythes, a playoff scoring title, a playoff goalscoring title, and a playoff PPG title (min. two rounds). Ovechkin has one Conn Smythe, and a playoff PPG title (min. two rounds).
Give Crosby the edge, 5 to 2, in peak/close to peak playoff runs.