[quote name='corrosivefrost']All of the prequels sucked. Sith sucked the least. Am I correct in thinking Lucas wrote the scripts for I and II but not II, just like he did with IV and VI but not V?
If so, that would explain it... but I know the best of the six is Empire, and Lucas had very little to do with it compared to the other films.[/QUOTE]
Nope, he wrote and directed all of the prequels. He turned over the directors chair and screenplay for V and VI, which is why many people say they sucked the least.
In reality, he was not happy to turn over (Fox made him) V and VI to Irvin Kershner and Richard Marquand, respectively and refers to them as his least favorite...And why when he agreed to the prequels, he would do it alone.