No, exclusives are nothing more than monopolies hiding behind technicalities, they KILL competition, not create it. Exclusives are the sole reason anybody even buys any of the consoles at all, rather than that the console has value of it's own, and that's a very bad thing. Exclusives mean that instead of creating systems that are good and sold on their own individual merits, allowing the customer to pick and choose, we've got 3 consoles that are effectively identical and could run and with things like controllers sold separately control all the video games in existence pretty easily. These are prevented from doing so in order to force the customers to buy every single console or go without this games, buying consoles for the sake of the games that exist for said consoles rather than for the value of the console itself.
People don't buy consoles because this one has a unique control method, or this one has a unique viewing mode, or whatever, in fact the attempts to give consoles these abilities have been pathetic precisely because due to exclusives they don't have to put any real effort into these things to sell the console. At least PC will eventually have emulators that will work any given console sooner or later, so I'll give PCs a pass on the issue.