ray_afraid said:

I agree with everything ZkinandBonez said.
I actually like most of the designs in TPM!

I've always kind of liked TPM despite it's flaws because it's the only PT film that actually feels like a bad Star Wars movie. I prefer my bad SW movies to at least look like they are SW movies. Episode II and III just didn't feel like SW to me.

However, one of my least favourite designs in the entire PT trilogy is Dexter's Diner. It looks like something that belongs in an episode of Futurama.

This droid looks like it belongs in an episode of the Jetsons.
I'm also not a fan of the 50's and 60's retro vibe. It's just to obvious to me. It's a design that I think would have been very funny in a different Sci-Fi film, but it feels very out of place in a SW film I think. It's a bit too obvious.