All time USNTDP Scoring:
1. Phil Kessel - 73 gp, 72 gls, 122 pts, 1.67 ppg
2. Austin Matthews - 104 gp, 79 gls, 166 pts, 1.60 ppg
3. Patrick Kane - 66 gp, 51 gls, 101 pts, 1.53 ppg
4. Jeremy Bracco - 119 gp, 46 gls, 168 pts, 1.41 ppg
5. Clayton Keller - 61 gp, 34 gls, 82 pts, 1.34 ppg
6. Jack Eichel - 111 gp, 67 gls, 139 pts, 1.25 ppg
All time U18 seasons USNTDP:
1. Austin Matthews - 60 gp, 55 gls, 116 pts, 1.93 ppg
2. Phil Kessel, 41 gp, 41 gls, 73 pts, 1.78 ppg
3. Jack Eichel, 53 gp, 38 gls, 87 pts, 1.64 ppg
4. Patrick Kane - 43 gp, 35 gls, 68 pts, 1.58 ppg
5. Sonny Milano - 58 gp, 29 gls, 86 pts, 1.48 ppg
6. Matthew Tkachuk - 65 gp, 38 gls, 96 pts, 1.48 ppg
7. Jeremy Bracco - 65 gp, 30 gls, 94 pts, 1.45 ppg
8. James Van Riemsdyk - 30 gp, 20 gls, 38 pts, 1.27 ppg
U18
Jeremy Bracco - 2014-15 - 7 gp, 3 gls, 13 pts
Kasperi Kapenen - 2012-13 - 7 gp, 5 gls, 8 pts
Kasperi Kapanen - 2013-14 - 5 gp, 1 gl, 2 pts
Top U18 seasons in Finland since 2010
1. Mikael Granlund - 43 gp, 13 gls, 40 pts, 0.93 ppg
2. Aleksander Barkov - 53 gp, 21 gls, 48 pts, 0.91 ppg
3. Artturi Lehkonen - 45 gp, 14 gls, 30 pts, 0.67 ppg
4. Joel Armia - 48 gp, 18 gls, 29 pts, 0.60 ppg
5. Jesse Puljujarvi - 21 gl, 4 gls, 11 pts, 0.52 ppg
6. Teuvo Teraveinen - 40 gp, 11 gls, 18 pts, 0.45 ppg
7. Juuso Ikonene - 20 gp, 4 gls, 9 pts, 0.45 ppg
8. Sebastien Aho - 27 gp, 4 gls, 11 pts, 0.41 ppg
9. Kasperi Kapanen - 47 gp, 7 gls, 14 pts, 0.30 ppg
Top U19 seasons in Finland since 2010
1. Teemu Pulkinen - 55 gl, 18 gls, 54 pts, 0.98 ppg
2. Mikael Granlund - 39 gp, 8 gls, 36 pts, 0.92 ppg
3. Markus Granlund - 47 gp, 15 gls, 34 pts, 0.72 ppg
4. Joel Armia - 54 gp, 18 gls, 38 pts, 0.70 ppg
5. Artturi Lehkonen - 33gp, 7 gls, 20 pts, 0.61 ppg
6. Juuso Ikonen - 17 gp, 4 gls, 10 pts, 0.59 ppg
7. Sami Vatanen - 55 gp, 7 gls, 30 pts, 0.55 pgg
8. Mikka Salomaki - 40 gp, 12 gls, 21 pts, 0.53 ppg
9. Joonas Donskoi - 52 gp, 16 gls, 27 pts, 0.52 ppg
10. Kasperi Kapenen - 41 gp, 11 gls, 21 pts, 0.51 ppg
IMO, Bracco is the most talented player at this point by quite a bit. If both guys were in the 2015 draft I would have taken Bracco before Kapenen. Kapenen has the tools to be a solid NHLer, but to this point in his career the offensive game hasn't developed much. Bracco on the other hand is a high end talent. The only thing holding him back is size, which is an argument I don't really believe in. The only guys who produced at his level and didn't become NHL stars are prospects that haven't made it/been drafted yet.
For me #3 is Bracco.