Bad color choices really turn me off. I’ve seen so many give off big MS paint energy regardless of the quality of the art itself.
I’d rather read (and tbh do often) a comic with a nice palette and not so great art than a nicely drawn comic with weird MS paint colors.
I’m also not a huge fan of it when a comic takes forever to get to the actual point. With any medium you have VERY little time to engage the audience which is why writers really think about their first sentence, directors will think about their opening image, but in comics I feel like people get tooo comfortable thinking about how THEY know where the story is going but don’t really think about setting up the reader’s expectations of the story to come. I love it when a comic presents the conflict right at the top.