Eh, I'm not so sure about that. I mean, DT is long, sure, but it's pretty mediocre compared to his other books. Frankly, I blame the van accident for him rushing the final three books.
Best King Books (note: I haven't read everything he's written in the last few years)
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Needful Things
Shining
The Stand
Desperation
Stationary Bike (novella)
Misery
Green Mile