Old Nintendo would be the best, but now the new Nintendo is just remaking the ds a bunch of times, making small changes.
Microsoft is awesome, the best online community, but you have to pay for it, and I believe the PS3 graphics are better.
Sony (if we are talking video gaming wise) has a poor online community, but can surf the web for free, and online playing is free, and graphics are better.
cant deside. i have played all 3 of them and they have awesome games. examples: microsoft: most of the godzilla games and halo games. sony: jak & dexter series, atv games, and some starwars games. and nintendo: nearly all mario games, dk games, some zelda games... so yeah, all of them have awesome games.
is this a consols battle or does PC also count? if pc counts then microsoft for sure. if not then nintendo wins because they are doing it for 20 years longer then sony and microsoft and in those 20 year they made a monster load of awsome games (wich most of you don't remember because you were not born =( )