I'm in the same boat. To be honest, I blame the availability of games these days. It used to be that I'd get that game I'd wanted for ages, and it'd be all I had, so I'd play it to death. Just after it was getting repetitive the next thing would come along.
But with endless hype causing us to keep tabs on a stack of upcoming releases, and digital enormo-sales, I think it generates a kind of overexposure.
For the last year or so I've been consistently playing through five or six games at the same time, with more drifting in and out of the fringes of my interest. It's not so much that none of them totally hold my interest, more that I can't settle on one to commit to. Consequently I enjoy them all a lot less than I should.
On games worth playing, I can suggest a couple of things.
For a good RPG/ARPG hybrid, if you don't mind one from the Diablo II era, I'd recommend
Divine Divinity. It's not perfect - the controls are a bit outdated, the voice acting is awful, etc. - but it's got more depth than the hack-n-slash appearance suggests.
On that note, I started loving Divinity II: Dragon Knight Saga
more once I accepted it as a hack-n-slash with RPG elements, rather than the other way around. Also, you become a dragon. 'nuff said.
I can't really recommend strategy games. I like them, really. Total Annihilation is one of my most fondly-remembered games; Warcraft is one of the first games I remember having; I absolutely love the aesthetic of the Homeworld series. I love staring at the terrain and units, looking at the variety between factions, listening to the voices natter as I order them about... But I simply can't play them. I don't have the mindset. Still. I quite like the look, or idea, or both, of
AI War, for its nifty pixel art, huge fleets, desperate last-stand strategy, and lovely developers.
I lie. I have been able to play Dawn of War II, because it's far enough into RPG territory for me. It drops the things that I was never much good at, like resources & unit production, and introduces loadout balancing and customisation in their stead. It also captures the gutsiness of the 40k mythos - particularly the Marines - better than DoW 1 (or, dare I say, the tabletop game) did, with a handful of elites against a much larger force (prepares for vehement backlash). I am greatly looking forward to Retribution.