Hart record
Kane 1, 6, 6*, 7, 8
Kucherov 1, 2, 6, 8
MacKinnon 1, 2, 2, 3, 5, 6
Malkin 1, 2*, 2, 7
* also won the Smythe that year
Clearly this is oversimplified so don’t take it for more than it is, but Hart contending seasons tend to be the single biggest factor when comparing this tier of players.
MacKinnon has already surpassed Malkin and Kane in this area. Kucherov has a chance to do the same. In the long run I think we will end up viewing MacKinnon as the ”greatest” of this group, especially if he has a typical career arc with at least a couple more Hart-relevant seasons ahead of him.