I've never really liked Spook. It seems like there's a bunch of people who are big fans of his, and I'm not saying they shouldn't be, but I've never understood his appeal. I couldn't bring myself to care about his relatively stock self esteem issues, especially when compared to what Vin, Sazed, and Elend had going on. And his "dialect" drove me nuts. I was so glad when he stopped using it.