What are the differences between Sony, Microsoft, and Nintendo gamers?

[TheWPCTraveler]

S.T.A.G.E. said:

Xbox gamers= Competitive gamers (Primarily sports and shooters)
Sony gamers= Diverse gamers but like to play storybased games in many genres. Sony takes the jack of all trades master of none route, but still has quality.
Nintendo gamers= First party enthusiasts who like party games and platformers.

Since when were Nintendo fans not proud of the various puzzlers, RPGs, and strategy games available?