Agreed. The only difference is that Nash has played better when surrounded by better players, he's excelled on Team Canada for example, where Kessel has been awful internationally.
That's not even true, though.
Kessel:
Age 22 (OLM): 6gms, 1gls, 2pts (82gms, 13gls, 27pts)
Age 20 (WC): 7gms, 6gls, 10pts (82gms, 70gls, 117pts)
Age 19 (WC): 7gms, 2gls, 7pts (82gms, 23gls, 82pts)
Age 18 (WC): 7gms, 1gls, 2pts (82gms, 12gls, 23pts)
Age 18 (WJC): 7gms, 1gls, 11pts (82gms, 12gls, 129pts)
Age 17 (WJC): 7gms, 4gls, 6pts (82gms, 47gls, 70pts)
Age 17 (WJ18): 6gms, 9gls, 16pts (82gms, 123gls, 219pts)
Age 16 (WJ18): 6gms, 7gls, 10pts (82gms, 96gls, 137pts)
Nash:
Age 26 (WC): 7gms, 2gls, 5pts (82gms, 23gls, 59pts)
Age 25 (OLM): 7gms, 2gls, 5pts (82gms, 23gls, 59pts)
Age 23 (WC): 9gms, 6gls, 13pts (82gms, 55gls, 118pts)
Age 22 (WC): 9gms, 6gls, 11pts (82gms, 55gls, 100pts)
Age 21 (OLM): 6gms, 0gls, 1pts (82gms, 0gls, 14pts)
Age 20 (WC): 9gms, 9gls, 15pts (82gms, 82gls, 137pts)
Age 17 (WJC): 7gms, 1gls, 3pts (82gms, 12gls, 35pts)