It's #1 for me, but I do prefer error cards that have a clearly noticeable variation from the correct version, and I collect both versions (or all 3 or 4 or whatever) so I can see the contrast. Error cards are one of the oldest narratives in the hobby, and there are notable examples from the very beginning all the way to 2006 Alex Gordon. One of my favorite ways to collect.
https://allthecubs.com/card-filter/?...tax=collection