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I don't have a current top 10, because it has been changing over the years but I'll pick two directors, one is Tarantino, I only disliked 2 of his movies Kill Bill 2 and Deathproof and the other is Chris Nolan and the only one I don't think is great is The Prestige.
Other director's with longer bodies of work have a fair few duds, such as Spielberg, Kubrick, Scott, Kurosawa the former two are probably greater than Nolan but in his short time, Nolan has been more consistent.
Edit: Miyazaki! Can't think of a single movie of his which I did not enjoy.
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