I think the real problem is that all the kids that watched star wars when they were little grew up to be cynical assholes. Yes, every movie sucks, except the ones you watched when you were a kid, I get it.
If you look at it with fresh eyes, the original three had a weaker plot line, worse acting, worse special effects, and significantly worse choreography. C3PO and R2D2 were still there, as the robotic comic relief (to sell toys), and they were still annoying as hell. Maybe it's cool that Lucas originally did so much with such a small budget, and you somehow expect quality to scale linearly as budget increases, but it didn't turn out that way, and saying a movie is better because it is older and had a smaller budget is a pretty weak argument.
Keep in mind that every star wars movie was a kids movie. Kids were the target audience. If you were a kid when you watch one of the movies, you probably liked it, if you were not a kid, it was probably boring and predictable.