Series or Stand-alone?
You might think that, as someone who bleeds fantasy, I’d prefer series, but, honestly, I prefer stand-alone novels. The problem with series is that few people really know how to do series, which I personally think comes from the fact that people mistakenly think that The Lord of the Rings is a trilogy, rather than a novel, and it’s perfectly okay to crack a novel in thirds to make a trilogy, which it absolutely isn’t. The other problem is that series, especially open-ended ones, often tend to plateau. Much like comics or television shows, you can’t get into really meaty end-game stories, because you have to put the characters back on the shelf in more or less the same condition as you found them. And since stories should be about the most important thing that happens to a character, why bother?