The reason I ask is because both Hitchhiker's Guide and Jonathan Strange have "Lemony Snicket"/first-person-esque/characterized narrators, and I would like to know what makes them different. I think this belongs on Writers SE because I would like to know how to adapt or characterize various POV narration in a similar way.
Questions about literary analysis are off-topic, but if your question is "how do I write in this style?" you could ask that. Answers will likely then offer some analysis of the style you're trying to imitate. Your question will be stronger if you can call out some characteristics of the style that you've figured out on your own -- if you want to write in this style then, presumably, something about it appeals to you, so tell us what that is.
In other words, ask about the writing problem you are trying to solve.