Hmm, for next gen, already have the Wii U, definitely will get the PS4 at launch, and will try to get the next XBox at launch.
Last gen, played the PS3 the most, got all multi-platform games on it. Played the Wii alot at first, but ended up mostly playing the exclusives (which was still a good amount of time). 360... played a bunch of exclusives, and had all the Rock Band type games on it, but I don't think I have turned it on in aboot a year... Still have to play Witcher 2 on it, but need to find the time...
Or you know just buy whatever has more features/games you like then maybe grab the other down the line once the price drops, if it has stuff you want to play. Being a raging fanboy hold no benefits as a gamer, you just limit your potential pool of games so you can give fellatio to a faceless corporation...Why?
I've stayed with Sony so far because I prefer some of the exclusive games offered on the PS over the ones on the xbox. Specs aren't too important as I expect the spects to be similar enough, It's mostly what exclusive games will each system bring that will pull me in