VOY has aged well in some aspects, not as much in others. Classics "Timeless" often still have awkward Borg technobabble wedged in that feel like convenience. Near-classics like "The Killing Game" feature half-baked callbacks* AND the added bonus of getting around just how the Hirogen took over the ship and crew, who don't even lament on it in the epilogue. The potential with the holodeck saving the Hirogen, brings up a clever and huge plot idea, but it all gets dropped, as was the internal conflict between the Hirogen (which is by-the-numbers throwaway the moment the old leader figure is killed by the inexperienced kid figure because that solves everything nothing) and then we never see the species again until the straw-grasping season seven takes place when they should be far enough away from their territory... In a later episode, species 8472 is wasted with Boothby coming in for no reason**.
I do appreciate how "Threshold", "Retrospect", and others try to find new issues to tackle - as sci-fi or commenting on the human condition, but they go too far out in so many directions that the whole episode keels over. Or was that the real point, to get audiences to think and react in unexpected ways?
"Blink of an Eye" is definitely an all-time great. "Year of Hell" is pretty much pristine. "Scorpion" manages the near-impossible. "Living Witness" is another sublime entry. TNG couldn't do these episodes...
* Really, when learning about prey, getting them in unusual experiences would make more sense than YASB - yet another space battle (Worf 359, where one Borg blast is almost enough to cripple a ship
** Really, 8472 is going to swim 86,099 light years to go fiddle with Earth now? (Not 86,100? Missed it by that much...)