I liked the kind of dark vs. light thing that happened in Luke there. It contributed a lot to the movie.
The force lightning scene was also particularly dramatic
Yeah... it was pretty much the best part of Ep.VI IMHO. Also, infinitely better than the mandatory lightning scenes in prequels. Just look at the dialogue...
And now, young Skywalker... you will die. vs.
POWER! UNLIMITED POWER!!!No competition there I believe, yet somehow Ian McDiarmid (along with Mace m-f***ing Windu with purple light saber) was able to turn even that little debacle into a memorable scene, when Hayden was mostly just looking like someone kicked him in the crotch repeatedly (not that he didn't deserve it) and sounded pretty much like it too.
I have to agree with whoever it said that Ep.1-3 are not disliked because they are poor movies, but because they aren't up to the levels of expectation - or the original trilogy, for that matter.
They could have been so much, but Lucas et al dumbed them down to readily convertable videogame material, paid more attention to computerized surroundings (I won't even call them special effects 'cause there's nothign special about them in the movies, seeing how everything is
drowned in them). As it is, I prefer to read the books of the prequel episodes as opposed to watching the movies - lasts longer and doesn't attempt to feed everything down my throat in once digested form, if you catch my meaning. Stupid dialogue I can forgive - it was there in original trilogy, and heck, people tend to speak stupid things occasionally - but when you remove the bad acting and shiny toys from the view, I can imagine the world and events way better fitting the Star Wars universe than the movies did for me.
In fact, special kudos to whoever wrote the "Revenge of the Sith" book version. It actually manages to make Anakin seem have somewhat more reason to go dark and glowy-eyed than in the movies. Granted, the basic premise of going dark in order to protect your beloved from predicted death isn't the most convincing course of action for a
cunning warrior. In the movies, he was kinda just manipulated around by Palpatine like he was a puppet by the string, and Hayden Christensen's acting (and the dialogue written for him) didn't really shed light to what the character's motives actually were. Also, in the books you can interpret him going to dark in many ways - his feelings clouding his judgement, or just being an arrogant prick who thought he could control the dark side and use it as a necessary evil to beat a bigger evil (no dice there obviously); in the movies it looks more like a combination of paranoid schizophrenia and a jealous hissy-fit. I mean...
"I'll go dark to save Padme - woohoo, I feel great, Padme won't you follow me? Oh well I'll just throttle you here and now then instead!" Cunning warrior indeed...

...there would be more to rant over, but I think my opinion has become clear.

Oh, and my favourite of the movies is The Empire Strikes Back. It's just a series of excrement hitting the ventilator repeatedly for the Rebels, as it should be assuming the Galactic Empire had any competence at all behind them. Both Ep. IV and VI suffer from slight lack of it.
Empire is the only one of the movies that depicts the imperials as a scary, undefeatable enemy aside from hit'n run or covert operations. They find you, you're screwed and you run as fast and far as you can. If you can.