If we're going to compare apples to apples you really can't compare a 6 year veteran like Hall to a 2 year rookie like Johnny Hockey.
Lets compare Hall's first 2 years vs JH's first (and only) 2 years in the league.
Haven't looked at the numbers but I'd be shocked if JH doesn't win hands down.
Now, I'm not into all the advanced stats, just the black and white, here's Johnny's first 2 years, vs Halls:
Johnny: 40 EVG, 14 PPG, 88 A, 142 PTS in 159 Games. Ranked 12th overall in points in that time frame (Hall at 76 with 103 PTS in that same time)
Hall: 28 EVG, 21 PPG, 46 A, 95 PTS in 126 Games. Ranked 98th in that time frame.
But it's Johnny riding the PP with 25% of his rookie goals scored on the PP compared to Halls 42%
Halls first 2 years in the NHL were when he was 18 and 19 versus Gaudreau who was what 21 and 22?
Not exactly apples to apples.
So, we can't compare rookies to rookies, it's about age, not experience, so Hall then is in his 3rd and 4th NHL seasons (which means nothing in comparisons, though he was already anointed an elite winger by Oiler fans at this point, so we should compare him to a rookie to make it fair?)
Hall 2012/13-2013/14 Age 21/22 : 31 EVG, 11 PPG 87 A, 130 PTS in 120 Games. Ranked 33rd overall in this time frame.
It doesn't matter how you compare Hall to Gaudreau, Gaudreau out produces him, even if Hall has a higher GPG, he's proven he can't stay healthy enough to produce all season. And before you say "Hall played a full season this year, and Johnny didn't!" you're right, but even then, Johnny out scored Hall, both in Goals, and Assists. So, still no rebuttal.