Lot of fine choices here, so I'll throw a more mainstream entry in: James Cameron.
I know, the guy that made Titanic and Avatar? What are you smoking you silly engine? Well, I realised that basically every movie James Cameron has ever made is eminently watchable. Not all are transcendent classics like Raging Bull or Platoon but everything is solid across the board. His peak output is probably The Terminator series, Aliens and Titanic but True Lies, the Abyss, and Avatar are all totally watchable, fun movies.
Note, this does not excuse his shitty personal behaviour: seriously he nearly killed Ed Harris, his falling out with wife Linda Hamilton is a matter of public record and in a bout of beautiful poetic justice, she held onto the rights to the Terminator franchise for a long while. He's mellowed as he's aged, but he's still a bit of a knob. Mind you, if you could work for him you could probably work for anyone.