I'm a Nintendo and Sony person. I've never had an XBox, while I've had an SNES, N64, PS, PS2, Gamecube, Wii, and PS3. I don't know why the XBox never appealed to me. They had some games that I actually would've loved to have had, but I always chose a Sony/Nintendo system over it when the time came around. It's weird.
As for the XBox One, it sounds like a terrible idea. Microsoft is trying too hard to be innovative and fresh. They need to realize that they aren't Apple. The things they have suggested are so many and so radical that I don't know how everything will go down come the end of this year.
Now while I am Nintendo person, I must agree that the WiiU has had one of the weakest starts in gaming. I don't think I've seen a start this weak since Panasonic released the 3DO (something I had) and that didn't end well for them (well that and the insane price for the time). I really want a WiiU. I'm looking forward to the mini-tablet controller and the HD functionality. But I just couldn't bring myself to spend money on something that will get boring really really fast. They've really dropped the ball on the release schedule there. If I were them, instead of shoving another Mario adventure game out first, I would've made a new Mario Kart or Mario Party the first priority. They're two fun party games that can get pretty good as the competition ramps up, especially Mario Kart. I hope they've got some good things in the pipeline for this Christmas season, but I'm not sure they do. Super Smash Bros. still sounds like a long way off as does the new Mario Kart. I hope they know what they're doing.