as it's already been said, it makes no sense to call some richer than others based on their console of choice, as they are luxury items.
that being said, it's a matter of taste. if you like to not always play the same-ish "western" stuff the wii is probably the console of choice (at least for me); if you're looking for the high-def-omg "so real!" FPS you're better off with a xbox or ps
of course there are some titles other consoles offer one might miss, but as long as you do not have all consoles and a pc that will always be the case, so that doesn't really mean a lot. i know there are people who buy a specific console for a single game or franchise (with maybe 2 or 3 games), but that's... well i wouldn't do it ^^