Casual gamers is where both companies make their cash. Most "hardcore/regular" gamers almost always get both consoles anyway. The one they get 1st doesn't matter too much.
If you are someone who plays casually and just owns one system, Sony has done everything from the gaming front to attract customers. Lower price, almost total freedom with not having to connect periodically to the internet, no drm and arguably a better gaming system than Xbox 1.
It's almost certain to better in Europe(no chance in asia) as well because a lot of the xbox features are more catered to N.America.
The exclusive games M$ did show were pretty good compared to the PS4 but that won't matter too much imo, as the PS4 didn't poo the bed on that front.
The initial sales are going to be very interesting and I'm not counting out Nintendo to have a strong tomorrow morning.