now yes the movies have been released in various cuts between the original theatrical release and the faces version but the changes are failry minor...nothing along the lines of han shooting first or extra (repetative) scenes.
I personally remember the movie with c-3po's tractor beam line and the open the blast doors/close the blast doors line, and the your lucky you dont taste very good. while other people will remember the movie without these lines or various combinations thereof depending on what cut they saw. but either way its still the same movie...it doesnt really change the story. but parts of the se's do change the story.
now i dont totally hate the se's but there are parts of them that i dont like (han vs greedo, i find jabba redundant now, the ending song on jedi for example). the only major change i can really see an argument against as far as a faces or before edition not being original is the pre anh crawl but thats easily handled with multiple angles on the crawl.
im not sure how much of this makes sense and how much fits with the discussion...i guess my point is mainly along the lines of what version exactly is the "Original" version. and my opinion would be its whatever 77-95 version you first saw as these are all 'true' to the original story
-Darth Simon