Going back to the original topic: "Eject!" is part of one of the things that makes Star Wars more unique than the subsequent films. Star Wars is a mish mash of many different pulp sources (that only coincidentally resemble Joseph Campbell). The reason Biggs says "eject!" is because someone in The Dam Busters said "eject". (EDIT: Just saw someone else noted pretty much the same thing. But I'm rolling.)
Also on the original topic, I did think when we had our Marathon last year (this year?) that in 1977 Luke and Leia swinging across the chasm was one of THE iconic shots of the movie. It was on posters, it's on wallpaper, it was on lobby cards. It was a reason to buy the Death Star play set. Even the music hits some of the most energetic writing that Williams did for the whole film and that's saying something! And... they swing from one side to the other side. Heh.
But I'll take the Death Star X-wing battle (original edition only, please) over pretty much any space fight done before or since.