I own pretty much every gaming platform around (other than an Android platform, I suppose) and tend to manage to play a fairly good selection of releases.
The big pattern over much of 2013 for me was my declining use of the old "home" consoles, edged out by the PC and Vita. The PS3 still got some occasional use, spurred by a few decent late-cycle exclusives (Ni No Kuni, Disgaea 2 and so on), but the last game I put any serious time into on the 360 was Forza Horizon, way back at the end of 2012. MS really let the 360 twist in the wind for the final 12 months before it got replaced. I probably used the 360 more than the PS3 for most of its cycle (it was generally better for multiplatform games), but I felt few regrets when I traded it in against a new Xbox One the other week, while I couldn't yet imagine trading in my PS3.
The growth of importance of PC gaming has been a real trend recently. For much of the last console cycle, "multi-platform" meant "360 and PS3". These days, it's a brave developer who doesn't include the PC in their line-up. This was also, I suppose, a big part of the reason behind the decline in my use of the 360. It may have been better than the PS3 for most multiplatform games, but it had no chance against a modern gaming PC. On the PC, I've mostly been playing Borderlands 2, Final Fantasy 14 and I still go back for the odd blast of the superb Rayman Legends.
The Vita, for me, is the best little console that nobody owns and I regard its lack of success as a great shame. There are some fantastic games on it and I've put a lot of time into Persona 4: The Golden, Dragon's Crown, Soul Sacrifice and the many, many smaller and indie titles on the platform. The 3DS, meanwhile, I still find a hard platform to love, though I did quite enjoy Bravely Default until its later sections.
I now own both a PS4 and Xbox One. Neither has really produced a game to wow me yet - but then, that goes with the territory for early adopters. Killzone: Shadow Fall on the PS4 is much better than I had expected from previous Killzone games (having some fairly open levels and a better graphical style). I've also been enjoying Assassin's Creed 4 on the PS4 (more games need sea shanties). On the Xbox One, Dead Rising 3 is fairly good and Forza 5 has mostly been fixed after a disaster of a launch. Other than that, both platforms are currently fairly barren for traditional games - though Xbox Fitness is really impressive if you like that kind of thing (I do).
At least the PS4 and the Xbox One have the excuse of being new. The Wii-U remains a crushingly poor platform, with tired Nintendo exclusives being the only real releases of note. Zelda: Wind Waker looks fine at first - but then I remembered just how tedious I found it the first time around. Super Mario World 3d has some good moments, but is spoiled by poor 3d controls and level design that gets quite repetitive in the later stages.
And on iOS... ugh. I've almost entirely stopped using the iPad for gaming. I still fire it up for the odd session on a plane or train, but its games these days seem to split between paywalled crudware (generally not even games by any reasonable definition) and worthy-but-slightly-lacking ports of games better played on PC, like XCom and Baldur's Gate.