Here are my favorites at the moment. I'm still churning through a backlog trying to listen to as much as I can:
Here's what I have, so far:
1. Blue Stahli - Blue Stahli

UltraNUMB (like you haven't heard this 1,000,000 times by now)
Damn you guys for liking the same stuff I do! My hipster cred is ruined!
2. Mother Mother - Eureka

Simply Simple
At first I didn't care for this follow-up to O My Heart (one of my favorite albums of all time), but this grew on me. And continues to grow on me. Awesome album.
3. Nightwish - Imaginaerum

Rest Calm
Better than Dark Passion Play overall, but man, keep voiceovers out of my Nightwish songs, please! I get enough of that in Rhapsody of Fire's releases. Oh yes, have to say something positive: this album was actually written for Annette's vocal range and style, so it's quite different from previous Nightwish works. It rocks!
4. Cold Cave - Cherish the Cold Years

Confetti
I didn't even know this band existed until about a week ago. I've listened to this album pretty much non-stop since then.
5. Rhapsody of Fire - From Chaos to Eternity

I Belong To The Stars
Not as good as their last album, but still packed with enough symphonic overtures and ripping Lucas Turilli-approved guitarwork to take you on a mystical quest... doing... something. I honestly have no idea what happens in these albums, but the music is good and that's all I care about!
6. Rise Against - Endgame

Survivor Guilt
Yea, this album has a ton of energy and I can't help getting pumped up while listening to it. Some true gems to be found.
7. Within Temptation - The Unforgiving

Lost
I couldn't help but feel a little disappointed in this album after the strength of their previous album's, but Within Temptation's latest is still *very* good.
8. Florence + The Machine - Ceremonials

Spectrum
For an artist that is purportedly "mainstream", Florence + The Machine has some really experimental / indie overtones. Great follow-up album, even better than her premiere.
9. Opeth - Heritage

Famine
Well, this was a surprise. I like this "clean" Opeth album a lot more than Damnation.
10. Above & Beyond - Group Therapy

Every Little Beat
A very soothing and awesome piece of electronica goodness.
11. PJ Harvey - Let England Shake
12. Adam Skorupa & Krzysztof Wierzynkiewicz - The Witcher 2: Assassins of Kings Soundtrack
13. Cage the Elephant - Thank You Happy Birthday
14. Nero - Welcome Reality (Shout out to Neverend for getting me hooked on these guys)
15. Danger Mouse & Daniele Luppi - Rome
16. Ume - Phantoms
17. St. Vincent - Strange Mercy
18. Cake - Showroom of Compassion
19. CunninLynguists - Oneirology
20. Starfucker - Reptilians