Like Branham suggested, GOLDEN VOYAGE is the best of the Sinbad pictures. Tom Baker as an evil vizier, Eurotrash cinema mainstay John Philip Law as Sinbad, Caroline Munro's oiled clevage, and the scene with the Kali idol make it a winner. I think it's also the best scripted and most modern out of them. 7th VOYAGE has some great scenes though, no doubt.
Years ago I saw a Japanese Sinbad picture with Mifune in the title role...wasn't very good, but interesting.
**I'll add my vote for Golden Voyage. 7th voyage ain't bad either. But, even though it is not Arabian, Jason and the Argonauts certainly tops 7th Voyage and may even beat out Golden Voyage.
Met Harryhausen at a comic con in the 80s. Very nice man. He autographed a still from 20 Million Miles to Earth.