stephen king is amazing. contrary to all his die hard fans, i strongly prefer his more recent work, like dreamcatcher and under the dome and duma key. (not a fan of the 'under the dome series', however.)
i read under the dome in probably two days flat, which is quite an accomplishment considering its girth.
as for the dark tower series--it was very flawed and spotty at first, but i stuck with it because i had faith in him and i was not disappointed. it was awesome to learn that the dude from salem's lot is gay.
hearts in atlantis is super underrated. i was glad that he revisted that 'feel' with duma key; the forlorn, sad and beautiful palette of artistry really struck a chord with me.
and then you have the actual horror of 'insomnia', which actually *did* deprive me of sleep due to fear after reading it!
as a fiction writer myself, i've even gleaned a few tips and tricks from his memoir, 'on writing'. he and i are in completely different classes and categories, not to mention genres, but there are a few things that all writer have in common.