I agree with those who say both movies are different, an apples vs. oranges comparison. But both tasty!
Priscilla is a sentimental favorite of mine, forming part of my post-coming out adjustment to the gay world. When I moved into my first BF's house I bought a new TV & DVD player for my bedroom, with Priscilla the first disc I got. I forget how I knew about Priscilla, I think it appeared on cable at my previous house. I watched the DVD over and over.
And became so fascinated with drag that I began a 7-year period of doing the lighting for drag shows (I have a theatre degree). And especially loved personally running the follow spotlight, something I first did back in the 1970s for stage musicals (minus the drag queens).
So Priscilla did all that for me, I suppose. But purely seen as movies & entertainment, both of these are still tasty.