I think they all have their merits. I like the Wii because of the interactive format, but despise it for a lack of really great titles. PS3, I haven't actually played, but the price is great considering it has a blu ray in it...awesome. I realllly want to buy an Xbox360, by far the best titles in my opinion, I wish I had one currently.
This thread is fail. First off, there are hundreds of threads like this scattered on the video game forum, and second, you can't compare a console like a PS3 to a handheld like a DS.