I don't think an online survey is going to reflect the definitive outcome
1) If you took the time to answer an online survey regarding this issue is likely that you are interested in the issue, so the ones who answered that were going to buy a console will be aware of all the development and the Microsoft mishaps along the road, so that could explain the tilt
2) Unlike PC users, the majority of console users are not really aware of whats going on, and just buy things by impulse. Is likely that if you have a Xbox 360 youll be picking a XONE, this also works for Sony, the base of Microsoft console owners is bigger, so they will sell more consoles
3) During the initial months Microsoft consoles will be more available due to a better supply chain
4) Im not sure what to think about the elasticity of de 100 USD spread between the consoles and Microsoft bigger day one titles, I think they won’t be determined
Even as I will be buying a PS4, I'll bet that Microsoft is going to maintain a greater user base, but the gap is going get closer over the time