I just got the boxed set of all the versions for Xmas, and no, there aren't too many versions. Clearly the director's cut is the "right" one but it was educational reviewing the others to discover:Am I the only one who thinks there are WAY too many versions of this film?
1. How godawful annoying those voiceovers really are (yes, they do insult the audience's intelligence, and yes, they are written in a painfully clunky style so no wonder Ford was appallled at what he was expected to say).
2. How completely the original US ending with Deckard and Rachel running away together through the beautiful woodlands RUINS THE MOVIE!

Does he now realize he might love Rachel for "artificial" reasons? Does this reinforce their relationship because they are now both fugitives? How long will either of them live (deleting the scene about Rachel's long life means we can't assume anything.) Their newfound love might last only a day. Loved that!
Without the director's cut to use as a comparison, the flaws in the original aren't nearly as obvious.
Sounds pretty unprofessional of him, but considering how badly the narration was written, can't say I entirely blame him.(And I've heard that he did a deliberately bad job on the narration as a protest for having to do it at all, but that may be apocryphal.)
The scene with the unicorn (how could Gaff know Deckard was dreaming of unicorns unless those tendencies had been implanted?) was in both the final cut and the US version, so he's a replicant in both, but with that oddball ending for the US version, it's like they were trying to backtrack and deny what the unicorn scene was implying.SO... maybe in the "Director's Final Cut" Deckard is a replicant, but in the other versions, he's not?
Deckard's ironic expression and very slight nod after picking up the unicorn was confirmation that he was thinking "yeah, I've always kind of known..." There were other clues, such as his prominently displayed family photos, which suggest that he was trying to shield his subconscious from what he already knew to be the truth. He had to have sort of known instinctively, or else he could have dismissed the unicorn as a bizarre coincidence.