I just banged out the Age of Madness trilogy. Finished A Little Hatred 1/10, The Trouble with Peace 1/13, and The Wisdom of Crowds yesterday 1/16. Needless to say, I'm deep in the bag for this world and I think it's the best realistic fantasy since GoT. I think it's better than the Thrones books, I think Joe is a better writer, and I cannot wait for the next trilogy to find out what happens with the characters from the Age of Madness.
I think it's no contest better than Sanderson but I'm not a huge fan of his. I have read his Wheel of Time stuff, the Arclight stuff, and Mistborn. As others have said it's just different. Sanderson is high high high fantasy. If you want to read a thrilling aerial battle where people have glowing swords and they are creating all kinds of chaos and they have supernatural abilities it's probably as good as it gets. You probably have to read 600 pages to get to that stuff which is my problem with it.
Ultimately I love his characters, and without giving any plot points away my brain will be thinking about Ninefingers and his duel in the circle, the Dogman, Orso, Rikke, Glokta, and all of them probably until I die hopefully many years from now.