I'm sorry but anyone who really thinks Xbox is going to have better exclusives is kidding themselves
Sony already said every single last one of their studios is working on a PS4 game. And honestly in my opinion, whatever Naughty Dog and Sony Santa Monica put out >>>>>>> anything Xbox has exclusive. Ryse is average according to just about every gaming site/publication out there. KI isn't being raved about, Dead Rising seems to have lost its humor which is what differentiated the series in the first place.
I do agree that as of right now the One appears to have the better exclusives. But do people really invest 400+ on a console based off of the exclusives available at launch or what they know will be on the system the next decade. Look at the Ones exclusives. Majority are 3rd party games. Dead Rising, TitanFall, Ryse, Below, D4,Sunset Overdrive, all third party. MS did the same this gen with Bioshock, Mass Effect, Dead Rising etc. They never buy the rights to the series its self and those games don't stay exclusive. MS published Mass Effect and Bioshock 1 yet both found its way to PS3. So unless they buy the series it doesn't really matter who publishes it on Xbox or not. And again if you think TitanFall will really stay Xbox exclusive... you're kidding yourself.
Those 3rd party games will come to PS4 eventually and then the Ones only exclusives will be some combination of Halo, Gears,Forza and whatever big franchise they come up with for the One every year based on what we've seen from MS the last two gens, just like its been on 360 since 2010.
Sony's focusing on PS4 right now and this year they still released Ni No Kuni,Sly Cooper, God Of War and The Last of us(which many are saying is the best game this gen) for PS3. And Beyond Two Souls plus GT6 are still on the way.
We still don't know what Naughty Dog, Polophony, Sony Santa Monica, Sony Bend, Team Ico or Media Molecule are working on, and you can bet Insomniac will be releasing a PS4 game, especially with the Rachet and Clank movie on the way. And those are just some of Sony's studios confirmed to be working on stuff. And alot of those studios have multiple teams and could be working on multiple games. And every single last One of those studios are proven and have released multi million selling, critically acclaimed triple aaa games this gen.
I'm still getting the One for Halo, Gears and Forza and I know those games are the reason alot of people want one. But if you get one because of the games shown at E3 and the belief that the One will have the better exclusives overall, you're in for a big disappointment. A decade of experience proves otherwise.