I didn't grow up watching these movies, so I have no nostalgia to cloud my mind, and no childhood to rape.
I don't like Return of the Jedi till the very end. It felt like bullet points and didn't feel like it had an organic flow. The return of the Death Star just felt like it was there to be a threat, especially since the Rebellion destroyed one in A New Hope, and don't get me started on the time differences on building two Death Stars.
The performances feel off, and Han Solo doesn't seem to have that edge he had in the previous films. Vader is no longer off the leash, and always seems to be hyping the Emperor. Luke initially seems off the map, with Force choking the pig, probably because it looks badass as opposed it seems to not be very Jedi like.
Oh and that dance number in Jabba's palace?
I actually like Episode III more. It has the emotional payoff of Anakin going to the Dark Side, Palpatine taking over after 2 Episodes of scheming, and no annoying characters (Jar Jar doesn't speak), Order 66 montage, and Ewan McGregor and Ian McDiarmid just knocking it out the park.
Hell, even Natalie Portman pulled off some decent spots. Hayden Christensen may of been a little wooden, but he's playing a conflicted Jedi, so I give him slack as he doesn't know how to rationally express these feelings as most of his peers are more in control of their emotions and don't rely on them.