Prismacolor has always been the betalisk. I have a small set of markers from them (from .005 to brush, plus 2 seipa), and they are awesome. Never heard of Copic. Also if the Copic has "better reviews" and there's a less amount of reviews than the Prismacolor, then his comparison is bunk, especially if the ratio is really high (like 3 five-star reviews compared to like 100 four-star reviews).