I'll be lying if I claimed that I have no interest in the Xbox One. I am still very vexed at Microsoft the corporation as a whole for the shite it tried to pull last year with the DRM and the sheer reticence of its senior executives, namely Don Mattrick, but I can still appreciate how the post-Mattrick Xbox branch has worked to turn things round. The Kinect-less version of the console was a good, natural first start, even if it breeds repercussions for developers wishing to develop for the peripheral itself, and as the situation currently stands, the Xbox One exclusives are marginally more enticing than what is offered on the PS4.
Having never owned an Xbox console, and with Halo: Combat Evolved on PC being my only Halo experience, I'd love to own the Master Chief collection. Sunset Overdrive looks like a shooter I would be more than happy to support. Quantum Break, even if we've still seen little of it, looks like something I would pick up at impulse. I can't ignore a Platinum game, so I am naturally interested in Scalebound. Ori and the Blind Forest seems right up my alley, as does the new Crackdown, if I'm ever in a mood for mass property damage across an entire urban area, and for simple, dumb fun.
Despite that, if it comes down to one of the two, I will likely pick the PS4, as a longer-term product. As a long Sony customer for their consoles, there is certainly that natural disposition to lean towards PlayStation, helped by the familiarity with the DualShock controller, and the PSN/SEN ecosystem. Assuming the situation in Japan does not exponentially deteriorate, I expect Japanese studios to eventually find their way onto the PS4, and cement it as the characteristically more "Japanese" console of the two, unless Microsoft's new plan to court Japan somehow works well this time.
Additionally, PS4 will have Naughty Dog. There will be Guerrilla Games' new IP, which if the rumours are anything to go by, sounds very enticing. The Indie front makes up the bulk of the rest, particularly Abzu, No Man's Sky (also for PC, I know), Rime, and The Witness. Also, if I ever tire of the PS3 version of the game having substandard frame-rates, low animation, and woeful loading times, I can always upgrade to the PS4 version of FFXIV without much of a fuss, if I can't get the PC version.