I've never been a "Raped my childhood" kind of guy but a few things stuck out to me just now.
The OT changes that GL has made honestly don't bother me much. The only one that even comes close to sorta bothering me is the Vader "NOOO" at the end of ROTJ. And when I say bother I mean, I just liked it the way it was but don't really care that it has changed. And true the Jabba scene doesn't really work and blah blah blah. But ALL of the changes have been cosmetic. Nothing has changed the story of any of the movies, I mean, does a shockwave from an exploding planet really just ruin the movie for you?
I'm just going to start with the fact that this is the first time I have EVER heard anyone complain (or imply there were complaints) about the shockwave.
But while your specific examples are cosmetic, there are sceanes that do alter the story, Han shooting first, Wampa being clearly seen (Changes the entire tone of the first sceane of ESB), and while it can be argued Jabba's band is just cosmetic, the sequence does change to mood and tone of Jabba's palace. The Jabba sceane you mentioned is kind of redundant as it says exactly what was said with the Greedo sceane before it, again redundancy does effect the story.
And honestly if the Prequel are so terrible then so are the Originals. YES I SAID IT! The originals are just as flawed as the Prequels. "Anakin is waaayy too whiney"! Oh and Luke wasn't. Luke whined the WHOLE time in ANH and was a bit whinny in ESB too. Jar Jar is annoying. Threepio didn't get on your nerves at least once?
Well, Luke never tried to speak with such a fake british accent. Seriously the accent got on my nerves more than the whineyness. What was up with that I have no idea, Vader never had such an accent through his synth thingy, Jake loydd (who I found more annoying than Jar Jar just for bad acting) never did either. Hayden is a decent actor (I've seen him in other stuff and enjoyed him) but his role as Anakin was really forced, he sounded worse than me trying to fake an accent, seriously, and everytime he spoke it pulled you right out of the moment.
All that said there are things I like about the prequels, new Jedi, new Bounty Hunters, expanding of worls like Courisant, Kamino, ect. Even Battle Droids for the most part (At least in consept)
But there is a ton I really don't like as well. Red Letter Media has a series of reviews that really hit a ton of things I don't like and I could go all day, but here are the biggies.
Lots of flash, little substance. Ep 2 really personifies this, I kind of liked the end battle but utlmatly it was just pretty pictures with little emotional investment.
Speaking of emotional investment, lightsaber battles. There was literally little to no emotional investment with those fights (one could argue Obi Wan and Akakin in Ep 3 had some, but that was it). Vader and Kenobi had emotional investment (even if we didn't fully understand it at first) and every time Luke faced Vader there was an emotional undertone (for different reasons each time). With the prequels it was all flash and nothing with it. The whole thing didn't resonate with me at all. And don't get me started on Mexican jumping bean Yoda.
Jar-Jar, not cause he was annoying, but he really didn't seem to fit in with Star Wars. He just seemed so far off the track from previous characters that he seemed to be from another movie, thankfully his role was lessoned, but he really bugged me (However, not nearly as bad as Jake Loyd's terrible acting-YEOCH).
There was Anakin's turn, Lucas internalized it too much IMO. Really there are people who still argue that Anakin turned because he wasn't granted Jedi Master rank (which Anakin's protests are a huge plot hole as he said his not achieving the rank was unpresetend, even though Lucas's own press releases/information for Episode 1 Stated Ki-Adi-Mundi was only a Jedi Knight as well and was on the consol).
But MOST of all, my biggest gripe was the Jedi itself, they came accross as zealots and tyrants (stealling kids into a life of seritude at a young age with NO choice by the children, and from what we learned of Dooku's story it is apparently VERY hard to leave the Order once inducted. That's not even getting into the whole oath of celebacy thing that everyone in the EU seems to rally against but ultimatly created the whole problem). While I like the Jedi Characters overall, the order just really made them look bad, in fact I'm one of those that really thinks they were the real bad guys (Hey they do bad guy things like lie, manipulate, keep secrets that are unessessary, ect). The Jedi could have been presented much better as well IMO.