Ditto. I tried Mistborn but lost interest after a while.
To the point about classics... just because something is old doesn't make it good, but the old ones that persist generally have something to offer that is special. Mary Stewart's Merlin series (The Crystal Cave, The Hollow Hills, The Last Enchantment) are one of my favorites, richly written. Even though the story is ultimately predictable, Stewart made it unique. Her Merlin is the only one that I've read that felt "real" to me, and I've read a few, including Lawhead's series.
Glad I'm not the only one re: Sanderson.
I agree regarding Stewart as well. She did great work.