Not sure even if i buy one nextgen, guess it depends how it will be and what games of course.

Nintendo

i will never buy a Microsoft-console again after the problems i had with 360

Sega.

Although you shouldn't talk about stuff like this when you don't know anything about the upcoming consoles, I can say with 99% certainty that that Nintendo will win me over once more, like every other time. For a second console, time will tell, I suppose.

I will most likely buy all three again :). In order: Sony, Nintendo, Microsoft.

ive thoroughly enjoyed both my xbox and xbox360, so i would probably consider Microsofts next console before the others.
ive been a bit disappointed by nintendo this generation, so i would likely put a lot more thought into it before deciding next time.
idk...ive never really been too impressed with sony. and ive found them to be even less impressive this generation. so i find the chances of picking up their next generation console to be slim.

Nintendo

The best of those. But I think it is unlikely that this console will come from Microsoft.

Nintendo definitely first.

If I got a second it would most likely be Microsoft.

I loosely plan on getting a PS4 and Nintendo. But we shall see of course. Depending on price, games, backward compatability...