^
Though the FX were much improved for VOY and First Contact were the Borg were concerned, and the ideas about the Borg had been more fleshed out, I enjoyed the chalky white Borg of TNG and ENT's "Regeneration" more. Perhaps its nostalgia, but when they were first introduced in "Q Who" they were a mysterious, terrifying enemy, and "Best of Both Worlds, Part 1" remains my favorite hour of Trek period. For the time period, well actually even today, I think the original TNG Borg really stand out. I never quite jibed with the post-TNG Borg. They looked a little too zombified. Plus I never quite liked the concept of the Borg Queen, though Alice Krige was creepily sexy. Though I did like a lot of the various ships and Borg technology VOY introduced.
It's a pity that you won't get that initial shock of seeing them for the first time since you experienced them on VOY first. IMO, I think VOY overused them, and their best outings were probably "Scorpion" (which ironically really defanged them) and "Dark Frontier" which altered the first contact story in "Q Who" that I so loved and still do. "Unimatrix Zero" was entertaining enough, but I didn't find it all that compelling, and I scoffed at how VOY turned the assimilation process into a walk in the park. It was a violation of the worst kind for Picard and it changed him tremendously. It added to the threat of the Borg. We saw what they could do on a big scale, but also on a more intimate level. The TNG Borg were truly terrifying. In comparison to VOY Borg, I don't think Janeway or Torres were affected at all by being assimilated. I might be wrong, but I thought the assimilation process triggered a mental illness in Tuvok, in "Endgame", and if so, the events of that program wiped that real consequence away. Even with Seven, they showed you could shed all that Borg armor and dead skin and be a Barbie doll in like two seconds. After RDM had left VOY, after a brief stint, I remember reading how he had wanted to have Seven's human look be slowly restored. I think this would've helped underline her growing humanity but it would also serve to reemphasize that being unassimilated is a long, arduous, and perhaps dangerous process. But TPTB were hot to get Jeri Ryan into a catsuit.