I have a collection of about three dozen articles from FairMormon, SLC Messenger, Ensign, and several other LDS publications that tell quite a different story.
Personally, I don't care, I happen to like you, but I would hate to think you are saying we all believe the same when other LDS publications don't say the same thing.
I think I can guess where you are misunderstanding thing--
First some big-picture background: LDS are NOT Calvinists. We believe VERY firmly in free will and a person to have a choice. God (being all knowing) knows what choices we are going to make, but each person makes there own choices with zero force or manipulation involved.
(Now explaining a piece of LDS theology, yes LDS are not sola Biblia). LDS believe that the Father had a plan before the creation of this Earth. A beautiful plan of salvation and happiness: the world would be created, spirits would be born into physical bodies, mistakes/sins would be made, but through the Savior those that believe in Him would be saved.
Now, the Father presented the plan to all His children and ask for a volunteer to be the Savior. The Father already knew who it would be (Christ) before asking this. Christ was already chosen by the Father, from the beginning, because He alone fully followed the Father's will. But still, let's Christ have choice here, hence the asking for volunteers so Christ may have a choice. And Christ does just that: accepting that the Father's will be done, and the glory be the Father's.
(*here's the part where I think you're misunderstanding*) Meanwhile, Lucifer (who was not remotely chosen) speaks up here. He volunteers to be a savior-- but not the type of savior the Father had planned. In fact, he doesn't want to follow the Father's will at all, but thinks he has a better idea and that the glory will all be his (Lucifer's). This Lucifer's opening act of rebelling-- blatantly disregarding the Father's will and glory-seeking. Of course the Father was never going to choose Lucifer and doesn't-- there was never a scenario with Lucifer being the savior. Though, without the correct background/context here, I could see where you would get that misunderstanding.
Anyway, I hope that clarifies things.