The equivalent of "God" in Star Wars is the Force.
Force ghosting is not "Jedi heaven", nor is it indicative of what happens to regular people. Despite the insistence by some Christians that even fiction must remain consistent with their belief system, the Christian Heaven and Hell do not canonically exist in the Star Wars universe, but there are always going to be people who believe in such things, including people in fictional universes.
Han Solo's use of the term "Hell" may not even reflect his own personal beliefs, as opposed to simple colloquial speech. But in any event he's not exactly to be taken as an authoritative voice on Star Wars "theology" - this is a guy who didn't even believe in the Force and called Force abilities "simple tricks and nonsense"!
The Jedi believe, in Yoda's words, that the dead "transform into the Force". This is backed up by Qui-Gon and the priestesses in The Clone Wars.
"When a living thing dies, all is removed. Life passes from the Living Force into the Cosmic Force and becomes one with it."
Yet much like differential innate Force potential, this is no invention of the EU or those dastardly prequels!
"[...]when you die, your aura doesn't die with you, it joins the rest of the life force." - George Lucas, December 1975
"The act of living generates a force field, an energy. That energy surrounds us; when we die, that energy joins with all the other energy. There is a giant mass of energy in the universe that has a good side and a bad side. We are part of the Force because we generate the power that makes the Force live. When we die, we become part of that Force, so we never really die; we continue as part of the Force." - George Lucas, from the transcripts of story meetings in preproduction for TESB