My favorites:
Long Price Quartet by Daniel Abraham -- Absolutely awesome eastern-based fantasy. First book was solid. Second was really good. Third blew my socks off. Fourth was a near perfect ending. Seriously good stuff here. Also, I've enjoyed just about everything else he's written under this name and his pseudonyms (MLN Hanover--UrbanFantasy, James SA Correy--SciFi)
Prince of Nothing Trilogy by Scott Bakker -- Seriously cool series, though the second trilogy is shaping up to really be less than stellar.
Engineer Trilogy by KJ Parker -- Just about everything in this series pushed my buttons. Loved it. But then of course, I'm an engineer.
Serial Killer books by Dan Wells -- Awesome. Just. Sheer. Awesome. READ HIM!
Malazan book of the fallen by Steven Erikson -- As with what has been said previously, read the first three books before you give up on this series. Third book was the goods. I had issues with the first two. Took two tries to get through the first, and three tries to get through the second. Third one I blew through without issue and loved every minute of it. Don't let this one pass you by.
Abercrombie rocks. Everything he writes is really good. Though Best Served Cold did drag on a bit for me near the end. Heroes rocked the block. Can't wait for A Red Country.
Burton and Swinburne books by Mark Hodder -- Alternate Victorian Steam-punked History and WAY fun. Though the second was better than the first, I'm so stoked for the third to come out later this year.
Jasper Kent's Danilov Quintet -- Three books out now. Seriously good stuff here. Starts in Twelve with REAL vampires in the Napoleonic wars against Russia. No sun-sparkly pansies here.
Anything by Alastair Reynolds. Can't get enough of this guy. Though he really does write SciFi and not Fantasy. One of the few SciFi authors that I really dig.
Scott Lynch has a lot of good stuff in the Gentlemen Bastard series that he's doing too. It's been a while since the second book came out, but I'm glad to see that he's been doing much better lately with his personal life and am really excited for Republic of Thieves.