Storm troopers are just GAR 2.0. And every bit of experience I've ever had with GAR is they come by their stupidity honestly. (Granted most that has been actual pc's and not cannon gar. But the cannon version does not seem much smarter.)
This is exactly what I've always tried to explain to people!!! I totally agree with this. Also if anyone has read the Expanded Universe, the Stormtroopers are depicted as one of the best soldier corps (if not THE best) in the galaxy. As well as Stormtrooper armor being the best and most high-tech armor for its timeline.
But alas, movies are what capture peoples imagination and not the books, and so we are stuck with a wrong assumption...
Cheers mate
Well, the Original Trilogy cast didn't have lightsabers aplenty to bat away blaster bolts, compared to the Prequels. Well, not until the later episodes, where the lightsaber was otherwise occupied.
Sadly, despite all the fan theories we might seek to apply, Blax is right.
It might have something to do with the fact that the film was mostly saved in editing to make it far more engaging, interesting, immersive and seemingly clever in it's aspirations. From what I've gathered, Lucas just wanted to make a silly, fun space movie with incompetent villains and everything, it was the others who came in and fixed whatever they could, but there was essentially only so much they could do, with what had been written and what had been shot initially.
I read an interesting theory not too long ago, where the basis of it was that in any given combat situation people generally don't want to kill anyone. The way this goes, is that when the storm troopers are fighting on the rebel ship, or on Hoth, the rebels are in uniform and are easily seen as enemy soldiers, whereas with Han, Luke, and Leia on the Death Star they're just seen as random teenagers thrown into a bad situation and none of the storm troopers want to be the one to gun down some random farm kid. Its the same principle they used in firing squads, where one of the shooters would be given a blank cartridge, and without knowing who has the blank it alleviates some of the guilt of shooting someone. Its probably too much thought put into, but I thought it was an interesting point anyway. I want to say I read it on cracked, or heard about it over there anyway so its not my theory, just something I read.
The funniest part of the Clone Wars TV series (the second one, at any rate) was how unbelievably stupid the clones could be. I'm pretty sure that the clones almost never took cover and instead just charged droid formations like some really weird adaptation of an early 19th century set piece battle. They were basically super-soldiers and they were consistently portrayed as being dumber than a bag of rocks and lacking even the most basic of self-preservation. At least the Stormtroopers tried to not die horribly.
As far as the question of Stormtrooper accuracy goes: soldiers in combat generally are not very accurate, especially when they don't have to make every shot count. Once automatics became widely available, the number of bullets expended to confirm a kill increased exponentially. The GAO did a study a few years back that said American soldiers fired something like a million rounds to score four kills in Iraq and/or Afghanistan. Modern small arms fire tends to revolve primarily around suppressing the other side so your helicopters can come in and blow the bad guys up -- the bullets don't necessarily have to hit to do their job.
But, yeah, nobody seems to be able to shoot accurately with blasters unless they're a named character. Just look at the opening scene of Episode 4: despite the Stormtroopers basically walking slowly into what should be a death trap, soldiers still can't hit them reliably. And yet Leia somehow one-shots some random Stormtrooper. As previously mentioned, lots of plot armor for those guys.
There was an episode of The Clone Wars, I think it was in the Geonosis story line, where they had the clones march up a narrow bridge with no cover, just walking right up to the heavily fortified, I think it was a droid factory, shooting as they go. For a series that I found pretty smart so far, I thought that was pretty ridiculous.
I'd chalk that up to either the writers having little grasp of tactics, tactics being largely ignored due to target audience, or a combination of the two. This seemed to get better later.
I think the important thing to remember with Star Wars is that it's space opera, not military science fiction. Watching The Clone Wars can get pretty annoying if you really care about tactics and things like that because the stories are part of a genre where fantastical things happen. It's like getting mad at the original Star Trek show because the captain goes on all the away missions.
There was another YouTube video I saw, way back in the day, where it had the Stormtroopers in there own version of cops, it had the theme song and everything. It showed them on Tattooine just answering some random Cops style calls and what not, then they get called out to Owen and Berus moisture farm. It has Owen and Beru in a huge domestic disturbance thing where she ends up grabbing, I cant remember if she grabbed one of the Stormtroopers rifles or if she grabbed a thermal detonator, but she ended up killing herself and Owen. Id link the video but YouTube is finicky on my laptop.