As i say in te question above, there are some ps3 users that dont have lag in skyrim. Why is that???? Answer please

No definitive answer for you there. Probably has a lot to do with a person's playstyle. I don't pick up anything, I return as many weapons and arrows to a corpse as I can, and I avoid killing named NPCs to prevent quest bugs.

On the same token, I have experience no major bugs, framerate drops or anything of that nature, in the 500+ hours I've played.

One thread is enough.

http://www.gamesas.com/topic/1361920-ps3-skyrim-gameplay/