Yes. Let's analyze:
Which is the better three year stretch?
Naslund
2001-02 Vancouver Canucks NHL 81 40 50 90 50 5th G, 4th A, 2nd Pts, 5th Hart Balloting 6 playoff games 1 goal and 1 assist.
2002-03 Vancouver Canucks NHL 82 48 56 104 52 2nd G, 8th A, 2nd Pts, 2nd Hart Balloting 14 playoff games 5 goals 9 assists
2003-04 Vancouver Canucks NHL 78 35 49 84 58 7th G, 9th A, 4th Pts, 5th Hart Balloting 7 playoff games 2 goals 7 assists
Kurri
1983-84 Edmonton Oilers NHL 64 52 61 113 14 5th G, - A, 7th Pts, - Hart 19 games 14 goals (Leads NHL) 14 assists 2nd in playoff points Team WINS STANLEY CUP
1984-85 Edmonton Oilers NHL 73 71 64 135 30 2nd G, 9th A, 2nd Pts, - Hart 18 playoff games. 19 goals (ties NHL record and leads NHL) 12 assists 3rd in playoff scoring. Team WINS STANLEY CUP
1985-86 Edmonton Oilers NHL 78 68 63 131 22 1st G, 9th A, 4th Pts, - Hart 10 games 2 goals and 10 assists.
It is clear to me that Kurri had the better three year stretch but it could be argued Naslund was close to it in his three years. Stretch it to 4 seasons, 5 seasons, 6 seasons, 7 seasons 8 seasons and on and on and Kurri comes out with a far better career, a longer and better peak. Far more success. There is no way that one can legitimately argue Naslund has had a better career than Kurri. It is impossible and to even try to argue for Naslund is ridiculous.
Kurri LED THE NHL in playoff goals 4 times. Every one of the first four Oiler Cups he was the goal scoring leader. Kurri has 5 Seasons with 10+ Playoff goals and a 6 seaons with 23+ playoff points.
Kurri played in an offensive era for sure. But these are his goal scoring and points stats regular season and playoffs in his peak: 82/83 to 89/90 Eight seasons.
82/83 96 games 53 goals 127 points
83/84 83 games 66 goals 141 points
84/85 91 games 90 goals!!!!!!! 166 points!!!!
85/86 88 games 70 goals 143 points
86/87 100 games 69 goals 133 points
87/88 99 games 69 goals 127 points
88/89 83 games 47 goals 110 points
89/90 100 games 43 goals 118 points
He AVERAGED over 8 seasons 92.5 games 63.4 goals 133.1 points.
He won 5 Stanley Cups made another finals appearance and lost in the 2nd round once. He played in 27 playoff series in the 8 years and his team won 24 of them. In 1983/84 he had the second most overall goals to Gretzky in 84/85 he had the most goals even outscoring Gretzky, In 85/86 he again had the most overall goals. in 86/87 he again led in overall goals. In 87/88 he had the third most overall goals to only Mario and Craig Simpson.
So over FIVE consecutive seasons in OVERALL goals scored in meaningful games (possibly the best measure of a forwards utility) Kurri was 2nd, 1st, 1st, 1st and 3rd. And he had to compete with Gretzky, Bossy and Mario in most of those years. I didn't figure out where his point totals would rank but they would likely range from 2nd to 5th over those 5 seasons and be at least top 15 or so for the whole 8 year peak.