In a different world, the Borg would have been very different on VOY. I think if they were going to do the Borg (and they were because they couldn’t not), it should have come at a cost. It’s bad enough the ship would survive against them at all, but to do it again and again was silly.
Every time they went up against the Collective, they should have lost something. Maybe a dozen nameless crew members the first time, maybe a familiar face the second time (say the Bolian
Chel they could pepper in more episodes she the loss hurts more), maybe the entire planet they were hatching a mission to fight them with the third time, and maybe a regular cast member the final time — say Chakotay or Harry. And that’s it. Any future run-in would mean certain assimilation or destruction as a nuisance, and they decide, tragically, to add a dozen years and go the long way, away from Borg space.
In a more serialized series, the ship would go through profound changes with every interaction where finally, it would have a different nacelle and half the hill plating would be discolored for having been replaced.