McDavid is incredible, but people are quick to forget how dominant Crosby was in his prime, and they're more in awe of McDavid because of his total numbers, but he plays in a more offensive era.
Defining Crosby's prime as the four seasons from 2010-2011 to 2013-2014, and McDavid's prime as 2020-2021 to now, the respective Top 10 point-per-game (PPG) scorers:
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Crosby is towering over everyone else in that stretch.