I think you're massively underrating Fedorov due to point totals and ignoring the fact that his offense was muted due to role in many Detroit years, as well as the fact he was one of the best defensive players in the league, while Kucherov doesn't offer too much else besides his offense and is an average star winger in terms of all-around game.
I know you're a very points-heavy guy, which is fine, but I'm not. Even still, Kucherov also only has 4 seasons as an elite scorer so far anyway (finishes of 1,3,5,7). Fedorov had 4 seasons as a top 10 or borderline scorer as well (finishes of 2, 9, 12, 14) while being elite defensively, plus that longevity. And even looking at peak, while I think Fedorov's '94 gets overrated, he was still better than Kucherov imo who, as noted at the time, was somewhat inflated by secondary PP assists on a stacked PP and put up 8 more points in a league that wasn't actually that different of a scoring environment. I don't think a roughly 15% difference in points makes up for Fedorov's two-way play, especially when Fedorov had more ES and primary points. I think putting Kucherov ahead of playoffs right now is also silly and ignores higher totals relative to the league these days than in the mid to late 90s, as well as overrating points over two-way play. Fedorov had 4 straight years where he could have been the Conn Smythe winner.
If Kucherov puts up a few more big seasons, he'll likely end up ahead, but I don't see the argument today whatsoever, and he's already 28, so it's not a given.
As for Malkin, I wasn't lumping him and Fedodov together, just listing the other two to pass behind Ovechkin.