McDavid scored 8 goals in 7 games, Michkov has already scored 6 goals in 3 games with playing on the 2nd PP. Not sure about points, but I expect Matvei score more goals, than McJesus. Of course Connor was a whole month younger... As to Ovechkin's 14 goals in 8 games, it's a tough record to even tie it, especially given teams play 7 games max now, I doubt, he'll score as many goals.
Another interesting thing is, McDavid and especially Ovechkin were phenomenally physically developed for 16 year olds, while Michkov's physicality is pretty average, if not below it. He's all about skill and IQ.