@ fkusumot
Companies are investing more money into home console game development than ever before. There is some competition like I said, but amongst home consoles there's far more direct competition.
Look I can easily say I greatly prefer the PS3 over the 360, but saying I prefer a PS3 over a DS sounds a bit weird to me as they are intended for far too different purposes. I could however easily say I rather take a DS with me while travelling rather than taking a PS3, HDTV and my surround sound audio setup with me (actually it's not even an option for me) as well as saying while being at home I rather play games on the PS3 than on my DS.