I admit, I used to kinda be an Xbox fanboy. But ever since E3, my faith has been diverted towards the ps4 because:
The price. Why would I pay more money for something that doesn't offer any benefits?
Performance. Although similar, the ps4 slightly takes the lead in the performance category. Then again reffering to the price; why spend more for less-advanced technology?
Limited sharing/swapping capabilities. I like to bring over a game to a friends house, have a good time and still be able to take it back when I head home. Why take this away from us? Obviously it is good for microsoft to make more money and to help control piracy, but still, in the long run they'll most likely lose more money, anyway.
Like Le0 said: "Oh, Microsoft."