I'm leaning towards handhelds right now; if someone took away my PC, Wii U, and PS3 for a few months, I don't think I'd notice with the amount I have to play on my handhelds.
I have a Wii U, and I'm confident Nintendo's first party will give me something to do on the system, even if it doesn't save it in the long run. I feel similarly about the Vita. 3DS is doing okay, though, and it's getting some of the games I'm very interested in playing.
PS4 is an unknown to me. Sony need to flesh it out more. I'm not saying I will buy it, but I'm also not saying I won't either. I'm still worried Sony will pull a major dick move and put me off the system like Microsoft have. Speaking of MS...
Xbone is... blegh. I don't think I've ever seen a more unappealing console launch in my life. I mean, the TV/entertainment features they've added that weren't in the Xbox 360 are dumb and uninspired, but I don't really think that's an issue; I just don't think anyone who didn't plan to buy a console in the first place is going to give a shit, which means it's about a less useful an addition to the console then the Wii U GamePad is. I also don't think HDMI passthrough is a remotely compelling function for people who want to play games. I'm of the view that if you lack the knowledge to use the Input function on your TV, you're probably not going to be playing games.
And I expect Samsung and other TV manufacturers will rip the voice control function off by next year, coupling it with their Smart TV functionality in the process, thus rendering all the TV passthrough features of the Xbone a complete waste of money.
And the new features that do have a modicum of sense to them make more sense being done on a tablet while the TV carries on playing, or I pause it to chat on Skype with my brother (I've tried doing the whole TV + Skype thing and it was a disaster, so merging them together on the Xbone is super stupid).
But as I said above, even if those features are useless, it doesn't matter; you can still distill the Xbone down to the games and still find value in it, but as someone who isn't very sentimental about most games (I'm very particular in my tastes, which means I blow through a lot of games very quickly, and re-sell them when I can), I find the lack of private resale value on the games I do own to be shit. GAME's trade-in prices are usually awful after the first week of release, yet the inflated prices they re-sell those games at has allowed a healthy pre-owned market to form on online auction sites, where the sellers get more for their games than selling to GAME, whilst the customer simultaneously pays less than buying through GAME. Xbone ruins that market.
Couple that with my direct experiences of Microsoft's first party (or lack thereof), and I just don't feel the Xbone will be a good investment in the long term. It may start out great, but if I picked up an Xbox One at launch, by the second or third year they will have bored me into buying a PS4 anyway due to the lack of games.
Plus, as an aside, I just love sharing things I love with other people. That's not possible on Xbone. It's a selfish ecosystem that's only going to encourage a narrow mainstream gaming culture that, whilst big in appeal, lacks the granularity I desire. Developers will be more conservative because gamers will be more conservative, and gamers will be more conservative because they don't want to risk buying a $60 game that sucks (due to the massively diminished resale value), and won't be able to easily share the games they love (or be easily exposed to new games that others think they'll like) due to the DRM shackles imposed on the product.
That may come across as a bit airy fairy liberal or whatever, but I do genuinely think I'm a passionate evangelist for things I love, and the Xbox One is pretty much the selfish antithesis of the culture of sharing that I grew up with in gaming. It's pretty much destroyed the whole aspect of sharing in games, and given us nothing of worth in return.
At any rate, if you couldn't already tell, I'm super bummed about the home console space in general. Usually it's post-E3 blues where I feel the games industry has committed to another 12 months of dreadful products, but all these early next-gen reveals have totally bummed me out on the hobby before E3 has even begun. I'm actually dreading the show itself...