If we're talking just points then i'd take Kopitar next year but Kane in the future. Very few players come into the NHL in their draft year and lead their teams in points. Kane was only 5 points behind Kopitar last year while playing less time at even strength and on the PP.
How so? Kopitar was three points away from 80 in his 20 year old sophomore season on the worst team in the league.
He will break 100 at least once in his career. Wait and watch.
I'm very sure I said normal season, and I didn't say career best.
Look at Sundin(who I think most people can agree with that Anze is very similar to), he hit 100+(114) points once, and he did this as a 21 year old in his 3rd season, and he never did it again(94 his 2nd best year). He scored 76 points in his 2nd year, as a 20 year old, which also happens to be 1 less point then Anze, in 2 less games, that year also was what a normal Sundin year woud be.
What a player does when he's 20, is not a representation of what he'll do at 26, some players are much more physically/mentally ready for the NHL that they have alot less room for improvement then their peers.