one thing really annoying about editing posts is you cannot see what other's have written whilst trying to do so - aaargh
Anywaay, just to try and get my head on straight, Jesus is not the only spiritual leader who is both revealer of truth and a god, two quick examples, both of which are entangled in this whole web someplace or other (no pun intended, but feel free to look up those as search terms anyway
): Krishna and Osiris.
Krishna* is accused by some revisionists of being a thinly-veiled version of the Christ due to the similarity of names and the time frame in which the BG (see below) appears. However the moral lessons he teaches are very different from Christs, being as they are arguments for tradition, duty and family over individual enlightenment. He is, however, a moral arbiter, a man, a prophet and a god in one man, so there ya go.
Osiris is credited with the introduction of agriculture, had a mystery cult surounding him which is, I believe, still pretty mysterious
He also gets chopped into itty bitty pieces, only to be reborn after he is saved by his sister/wife Isis. The possibility that the rebirth section of the Jesus legend comes from this is a strong one, and ties in with Akhenaten - if the jewish people were indeed formed, in part, from freed Egyptian slaves, it stands to reason that the faith of their old masters would run underground and emerge somewhere later on (or at least it's feasible). So to conflate Jesus with the reborn Osiris (whether he came back from the dead or not) was a smart move by the early church - no one wants to die, and to hear that someone has come back to life, like the world famous Osiris, becomes more plausable in a region and to a people who are used to that legend. However the myth about Osiris was powerful in part because he was murdered by his brother, Seth, so you'd have to conflate Judas with Seth, which is more problematic.
To return to the Thutmosis thing - what confused me as I was writing before is that one of the main reasons one could compare Akhenaten with Moses was because of their shared monotheism. Now whether in fact Thutmoses was the brains in the family, I don't know, but it was Akhenaten who had the temples built, who changed Egyptian art, etc (unless he was down in name only whilst his brother really ruled). Plus, Hugo, you say that he basically disappears from the scene as though that means he was the one that fled persecution (.'. Moses leaving Egypt) although in fact I imagine all of Akhenaten's followers were either killed or fled when his rule collapsed. The violence can still be seen today, all around Luxor any building with reference to him has been methodically scratched out, few examples of art relating to him remain and he was excised entirely from official Egyptian history. It seems more likely to me that the names of the two men were confused by Jewish scholars in the period afterwards, and the two brothers became one man. Opinions?
And finally, Mohammed (peace be upon him) - as you say fatwah's have been released for less, and the pontiff, as far as I'm aware, has not issued a death threat for some time, so your probably right on that count. Plus he's more recent, more documentary evidence, and the Qu'ran is meant to be the exact word of Allah, and thererefore it would be a very foolhardy Imam or Caliph who edited the words of the Qu'ran, as he'd suffer an unpleasant fate. Plus he's just the messenger, a pawn in Allah's game, and his personal contribution is not really interpretted much. I'd still be very interested to read any information about the origins of the Qu'ran and the motivations of Mohammed (PBUH) if you have any.
*footnoterphone: (for those not in the know, Krishna is an 'avatar' or Vishnu, the god who maintains the cosmic order and appears in the Bahagvad Gita - Oppenheimer quoted him when he said "I am become death: the destroyer of worlds")
OT alert -
Thelemic references in the Star Wars trilogy has a mention of Osiris, plus is pretty funny reading...