>>5 In terms of performance, the PC is a machine with limitless potential. It really can't be beat. However, you're not going to get an awesome gaming PC for as cheap as a console, so in my opinion PCs can't be considered consoles and thus are non-comparable. Gaming consoles are characterized for being affordable and cookie-cut, so that all of the same consoles will provide the same power. For PCs, this is not so, as they can be as powerful as your wallet is deep. And now for the question the OP asked:
Dr. Stylish, my advice to you is look at what games each console has. Exclusives, indie, AAA's, etc. Choose the console that has the most games that you and your brother want. You can pretty much ignore all the blather about hardware arguments, as most of that is just argument that allows the poster to justify why their console is 'better'. Keep in mind that neither the playstation nor the xbox are truly better than each other.
Nintendo obviously makes the best best consoles.