When the Wii U launches at the end of the year the only real difference between the three consoles that will be available (aside from the fact that you have to pay for Xbox Live) will be the exclusives. This generation has certainly been dominated by the Wii in terms of who has the most exclusives but who has the best?
Microsoft is probably the company with the worst record for exclusive games, really all they have left is Gears of War, Halo and Forza. Halo is still great but Reach and ODST didn't live up to the third and it is uncertain whether the series will be as good as it used to be without Bungie to guide it. Gears of War has only ever been great with the first game, the other two were good but nowhere near as good as the first, mainly due to multiplayer having the fun sucked out of it. Forza is a good racer but it seems too ordinary, there are plenty of racers to choose from and I can't see a truly compelling reason to choose Forza, for as I long I have liked the 360 I have never bought a Forza game.
Nintendo, as I said, had the most exclusives but the problem here is that, as good as Mario, Zelda and Metroid are they all stick to formulas that are starting to get stale, there isn't enough innovation between games anymore to make them feel fresh. Other exclusives such as Xenoblade Chronicles and The Last Story are good, great even, but they are only really as good as RPGs such as Skyrim or Dragon Age and graphically they don't live up to those games. Whilst graphics aren't the be all and end all they do play an important role in how enjoyable a game is.
With the PS3 Sony have hit their stride with exclusives with games such as Uncharted, Infamous and Killzone all being great series. However they too aren't entirely without their problems, whilst MGS4 is still a Sony exclusive, MGS 2,3 and Peace Walker have gone multi platform. Also a few of their exclusive developers, such as Zipper Interactive, have shut down and others, such as Insomniac, have begun to make multi platform games.
Ultimately for me Sony has the best exclusives, with some long running franchises and some new ones, with great graphics, story and gameplay. Of course it comes down to personal taste and fanboyism obviously plays a role as well. Perhaps you're lucky enough to have the time and money to own all three consoles and enjoy all of their exclusive games, if not though then which console do you think has the best exclusives?