The Star Wars prequels are not great movies. They are poorly acted, heinously written, slow when they needn't be, and rushed when they shouldn't be. George Lucas was more concerned with selling toys than telling stories, not to mention showing off the new hit-or-miss things his visual effects company could do. The point is, there are several very broad flaws to be found right on the surface of this trilogy without nitpicking and conjecturing every minor detail (unless you happen to be making a seventy minute long review).
The bottom line: lovers are gonna love until they take the complaints seriously. So we must keep the complaints serious and retire these top five Star Wars prequel nitpicks to the Netherworld of the Force.
In Star Wars: Episode IV - A New Hope, or just Star Wars as it was known for a whole four years, Old Ben Kenobi hands Luke his father's old lightsaber explaining that he "wanted you to have this when you were old enough". This slightly contradicts Revenge of the Sith's version of events in which Obi-Wan takes it upon himself to grab the weapon while Anakin says little beyond "AAAAAAAHHHHG!". But if flames were not slowly consuming his remaining torso, he might have made the first statement.
There were a lot of things needlessly contradicted in the prequels with far reaching explanations, like Yoda going from "the Jedi master who instructed Obi-Wan" to "the Jedi kindergarten teacher who instructs everyone when they're five and a half" just so The Phantom Menace could mirror A New Hope with a wise old sage getting slain. This change, however, actually makes logical sense.
Obi-Wan, who is essentially the propaganda minster of the Jedi party by this point, wants Luke to learn the ways of the force and bring down the Empire. This is the same reason he lied about Vader's identity in the first place. And telling Luke that his father wanted him to have his lightsaber to become a Jedi in his image is slightly more inspiring for Luke than "I peeled this lightsaber from the cold, dead fingers of your father's severed hand after I chickened him into trying to Darth Maul me. Actually, his fingers weren't very cold, but I attune that to the fact that we had just been surfing on a 900 degree planet of liquid hot magma." The wording of things sometimes affects the interpretation.
An astute person might notice that the above statement by Obi-Wan is an oxymoron. An astute person might also notice that the prequel trilogy had gone out of its way to portray the Jedi as a hypocritical, dogmatic cult way passed its prime. Of course, with all the other story problems in the prequel trilogy, you would be forgiven for thinking this is just another piece of hilarious incompetency on Lucas' part.
Revenge of the Sith circles, underlines, and stamps how out of touch the Jedi are when the evil Palpatine goads Anakin into murdering an "unarmed" Dooku, cut to an hour later into the film when the thoroughly unlikable but supposedly heroic Mace Windu uses the exact same defense when attempting to give Palpatine himself a similar treatment.
Even the original sequels deconstructed the flawless knight image of the Jedi a bit by showing them as manipulative liars (for a good cause, but still) and having Luke eventually beat the Emperor by ignoring everything the Jedi told him about Vader's incapability of redemption.
You see, it's like poetry. They rhyme.