My Skyrim acttually works petty well, even on my 107 hours imperial spellwarrior who has done petty much everthing minus exploring some caves and the gem collection. I do however get this rather annoy colour glitch (all metals go darker for some reason?) and had to turn off autosave (although i did that with 1.4 patch)
Problem is as someone mentioned back on page 4-5 is the engine, Bethesda have been using the same engine since obivilion and is just simply out of date with inferior code which no level of upgrading it can fix. this is reason why other companies don't have this problem, they have bulit new engines

For whatever reason, be it money or lack of skill Bethesda has not made an new engine and until they do so will contuine to be affected by these porblems.

For those wondering why Bethesda don't make statements or such it's simply to protect themselves, literally why announce you svck at working on PS3, we can't get dawngaurd working and should have never release Skyrim on Ps3 when you can just stay silent.....
Both options will annoy the fan base and such

but with staying silent they protect themselves (they can probably be sued for releasing an broken game) and continue getting income from new people buying skryim on Ps3.
There image is also less damaged as no- doudt there would be countless news acticles bashing them if they admited it should have never been released...