I wouldn’t and didn’t say he was the best player in the league, but he has been in that conversation more often than not in his career. He’s in that “Malkin” position where everyone realizes there’s a guy on his own team who will always be considered the better player over the long run, but there will also be stretches of time where he actually has the better performance (hence the Harts that Draisatl and Malkin have both won).
Just some snapshot examples:
this thread from 2020 has Draisaitl as the third best player in the league, behind McDavid who was taken for granted and MacKinnon who was strongly favored when that poll was taken.
This thread from 2021 again has him behind McDavid (taken for granted) and MacKinnon, this time somewhat closer.
This thread from 2023 had him narrowly behind McDavid (again taken for granted) and Makar. In between the snapshots, there were times when Draisaitl surged into being the chic pick for the #2 spot.
I don’t think there was ever a time that Chara would have been seriously suggested as the 2nd or 3rd best player in the NHL, not even for the brief period when he was viewed as (
arguably) the best defenseman going.