Currently I am working my way through Mistborn Era 2 and am really enjoying those books; about half way through Shadows of Self. These books seem a bit more whimsical and fun than Era 1 did, which I also immensely enjoyed, especially on my second read through.
I would have to say, however, that Words Of Radiance would have to be my favorite book so far and the Stormlight Saga in general. I really enjoyed how much internal struggle the characters face in WoR, and I felt the pacing was the best out of the three. The one thing that challenges that for me is the discovery and pacing of Dalinar’s past in Oathbringer. I really enjoyed that aspect of that book.
Going to attempt to get through Warbreaker and Elantris before RoW comes out, but quickly running out of time there