trevanian
Rear Admiral
^^Judging by the script submitted (in Ellison's own book), I would say the rewrites were motivated more by the former. It just wasn't Star Trek as originally written.
Only in details. Obviously they'd need to fix the angry Kirk/Spock exchanges about vulcan history and who 'hit space 200 years' before who, but the important stuff all would have worked. I'd say the contrivance factor of the sun and the keel and all that pointing the way to Edith is the only really weak aspect in the Ellison, and I'd suffer that in exchange for Trooper's inclusion anytime.
I love both versions, but I do have to say that the drunk w/ the milk bottle never worked for me in the aired version,