As cockroach surmised, I was trying to be as neutral as possible. If a casual gamer is leaning one way or the other for reasons of familiarity, or title preference, there is little reason for someone to change their mind. I wasn't trying to say that the X1 is the obvious choice for all casual gamers, only this particular one who was leaning towards the X1. There didn't seem to be a compelling reason to change his mind.
I certainly am not an Xbox fanboy. As I said, I own both, and play both. If I could only have one, I would keep the Xbox because I have a larger network of friends who have the Xbox, but I do think the PS4 is the superior piece of hardware, both for reason of superior tech specs which I do not first hand understand, but also because of my personal experience with Sony products being of higher reliability.