In South America we have a controversy over Pisco origin since Chile and Perú dispute its origin.
IMHO the origin doesn't matter much but I think there are more favorable reasons to recognize its origin as Peruvian (after all Perú even have a city called Pisco lol).
As for taste wise, I'm not a big fan of any Pisco (Peruvian or Chilean) but the Peruvian is definitely better. It has more grape aroma and flavor and its elaboration is much more careful and artisanal. Chilean Pisco is similar to brandy and has little to no grape aroma or flavor. It has more a wood aroma. I fact, in Chile everyone drank it mixed with Cola to make it more drinkable hahaha.
If you are a wine fan, you should definitely go for a Peruvian Pisco. And if you want to drink a Pisco cocktail, I recommend Pisco Sour. But without a doubt it has to be made with Peruvian Pisco.
So in summary, IMHO Chilean Pisco is just good for a night out (it's cheap and it doesn't taste THAT bad mixed with Cola). As for everything else go for a Peruvian Pisco hahaha.
I think my Peruvian friend
@nznity can help you more lol.