Steven King is a very different kind of writing. His Dark Tower series will always be one of my favorites. The unabridged version of "The Stand" is worth the read also.
"Misery" I read in one setting, I had to take a break in the middle of "It".
As to compare him with Asimov though, it's like apples v. oranges. Both are very good, it just depends on what you are in the mood to digest...
Currently reading "Decatur's Bold and Daring Raid" by Mark Lardas. Regarding the 1804 raid into Tripoli harbor to burn the captured USS Philadelphia.