but is hyperspace fury better than knock off on non-banded sets, though? the consistent power is nice, but i think knock off's utility is better in most scenarios, especially on bulkier hoopa sets where you really don't want the defense drop (fun fact: you can actually ev it to live a fully invested gambit sucker with 5 overlords even with a -def nature). full-power knock off is only marginally less strong than hyperspace fury too, so it still snags a lot of the same kos
It depends I think. I would say most of the time, knock off is better. But if they have reliable recovery and hazard removal, say regen, than knock off has a lot less power on subsequent attacks, which in that case hyperspace hole is better. If you can abuse the item remoal of knock off, than knock off would be better, which most teams can do to somewhat of a degree.
For example:
252 Atk Choice Band Hoopa-Unbound Hyperspace Fury vs. 252 HP / 252+ Def Dondozo: 187-222 (37.1 - 44%) -- guaranteed 3HKO
252 Atk Choice Band Hoopa-Unbound Knock Off (97.5 BP) vs. 252 HP / 252+ Def Dondozo: 181-214 (35.9 - 42.4%) -- guaranteed 3HKO
Technically, against dondozo, hyperspace fury is better in this scenario because despite the defense drop, it is a lot more spammable. Knock off, while still being great, doesn't acheive those numbers. (This is for choice band sets, but you can apply a non-choice band calc for a different mon. This is just to demonstrate my point) Against Dondozo with hyperspace fury they have to be careful to not drop 75% hp, as it will be 2 hit ko'd 98% of the time, which is massive. Against Dondozo with knock off they will have to lose their boots, but if they have something like corv, then that could be alright as you are now only guarenteed a 4hit ko. I know you say for non-banded sets, but sometimes you just want to have that raw power consistently.
A better example with assault vest hoopa:
44+ Atk Hoopa-Unbound Hyperspace Fury vs. 252 HP / 136+ Def Corviknight: 141-166 (35.2 - 41.5%) -- 74.9% chance to 3HKO after Leftovers recovery
44+ Atk Hoopa-Unbound Knock Off (97.5 BP) vs. 252 HP / 136+ Def Corviknight: 136-162 (34 - 40.5%) -- guaranteed 3HKO
In this case, while the calc says that knock off is better, corv can roost off the next knock off, so in this case it getting only 26% from fury compared to knock's 23% is marginally better. And the best part is you can use the hyperspace fury calc again, whereas knock's calc only happens once, meaning in the long term fury is better from a pure damage perspective, not including hazards.
TLDR, knock off is better for slowly breaking down cores if hazards can be abused, hyperspace fury is if you want to not have some mons wall you after their item is removed. I would still say you should choose knock off most of the time, but if you can play around the defense drops and have knock off somewhere else on your team, then hyperspace fury might be better.