As always:
Nintendo = fun.
More multiplayer, more fun with friends. "Arcade-r".
Sony = variety of games.
Less multiplayer, more fun alone. "Simulate-r".
Other consoles (Saturn, DreamCast, Xbox, Xbox360) = Try to keep up the close competition on the market.
Trying to be Sony and Nintendo together, not much success. As in rpgs a "pure build" will always be stronger than a "hybrid build".
That's about it.