I've only seen the first of the prequels and none of the SEs. Phantom Menace was so terrible (story, directing and acting), that I immediately lost any interest in anything else Lucas did after that. I know what's been altered in the SEs, but I don't have to worry with trying to un-see or un-hear any of it.

The original version of the first film is all that really interests me. ESB is just ok. ROTJ is disposable - I saw it when it was first released, but by then, my interest in anything Lucas had to say was already waning.