I agree the theatrical cut is inferior, the voice over wasn't done willingly by Harrison Ford, the "happy ending" is forced and hideous, etc... but I kind like the hardboiled vibes of the narration. It was also the first version I watched so it has a special place in my heart.
The Director's Cut -- that I know isn't an actual director's cut -- is possibly my favorite. Sadly, some murky visuals and a couple of plot holes (mostly number of replicants), plus the Zhora stunt double... once you see her, you cannot unsee her, and you'll wonder how you ever failed to notice the stunt double looks nothing like Joanna Cassidy and even the wig is wrong. But this is the version that stuck with me, and the one with the best color grading.
Then there's a workprint with increased violence. I don't get why some fans prefer an extended scene of Roy Batty gouging Tyrell's eyes out... I don't think "more is better" applies to graphic violence; sometimes implied violence is better, and in any case showing this doesn't improve the character of Roy.
Finally... the Final Cut. I appreciate they fixed (most) plot holes, they FIXED ZHORA'S STUNT DOUBLE (the single best improvement) and the image quality is way, way better. However, I cannot forgive Ridley Scott for changing the color grading to a greenish tint; Blade Runner now looks closer to the Matrix, which is UNWELCOME. I liked the more bluish/brownish tint of the Director's Cut, and really dislike the greenish/orange-y nonsense of the Special Edition. Here you can see what I mean: https://www.youtube.com/watch?v=ocx-Ch3Pzg8).
My ideal edition of Blade Runner: the color grading of the Director's Cut, with the improved image quality and fixed plot holes (and Zhora's stunt double) from the Final Cut.
(And yes, I'm aware I haven't mentioned all the cuts, just the ones I know).