RE: "B5 is really X in disguise" You're all right, and you're all wrong. Is it Lord of the Rings? Dune? The Kennedy story? The saga of Camelot? The Foundation? A brief history of World War II? The Bible? All these and
others have been broached to me by people absolutely sure that this was the model for the series. (And, as an aside, this kind of discussion generally happens only to TV writers; nobody here is doing a panel called "Is Startide Rising Really X in disguise?" This happens to TV writers because somehow it gets assumed that we haven't got an idea in our heads that we didn't swipe from somebody's book. But that's another topic for another time.)
Babylon 5...is a Rohrsharch test. An ink blot created by smashing actors, archetypes, saga-structure, myth and language against a sheet of paper, folding it, and bashing it a few times. When you open it up and look inside, what you see is the saga closest to your heart and your experience.
Because like all the works mentioned a moment ago, B5 draws upon the same wellspring of myth, archetype, symbology, and dime store sociology that feeds
all sagas, from the Illiad on through to the present.
Writers, science fiction writers in particular, are like the beggar in Alladin, who offered new lamps for old...we seize myths that have fallen out of currency and recast them in newer guise, dust them off and hope a genie emerges. Our myths, the myths of Tolkien and Homer, of Heinlein and Mallory, are eternal; they exchange one name for another, cast off one mask and assume the next. If you perceive their presence in Babylon 5, it is because we have
courted the myth, not because we have echoed one of their names from another place. King Lear vanishes into Londo, Cassandra peers out from behind the
eyes of G'Kar, Galahad answers to the name Ivanova, the Oracle at Delphi is now wearing an encounter suit, and Sir Bedevere is...well, that would be telling.