I have two comics and I'm trying both of these update methods with them. My main project and a long term comic Numb updates every week with one page. Little tales, updates very randomly, between every other month with a whole scene. I've been doing them both since last fall so let me share my experiences so far!
Numb, one page every week:
Honestly I'd say that at the beginning this method was somewhat poisonous for Numb. You see the story takes it time to set up and is heavily focused on character interactions and dialogue. So while I felt like updating the first chapter was just a drag and it went ooooonnn and onnnnn. Don't get me wrong, I got readers that were intrigued of the setting and are still there reading, but some others said that they just feel like nothing's happening.
I was starting to grow unconfident ("my comic is really boring and nothing can save it") until one other art critique friend read it in one lump and said to me that there's many things happening so fast. One reveal in chapter 1 shouldn't have been so soon. Also, after that things started picking up with the story and what was amazing was that my readers were noticing it and told me about it. It felt great!
So even thought first 5 months updating this comic felt kinda like suffering, I'd say now that it's worth it and this is why: Even if the story felt like it moved really slow with weekly updates there's now showing that I've been steadily updating it without a single error for 8 months now. I'm consistent creator. New readers who can now read more before waiting for updates know what they're getting into, and if the comic isn't their piece of cake they know it from the material that's out already. Start is always hardest for both readers (who don't have clear idea yet what's the comic going to be like) and the creator (staying firm with update schedule even if the good parts are far ahed).
Let's move on
Little Tales, once scene every other month/random
Little Tales gets clearly less views (so far it's 498) than Numb (7.7k), however the subscribers seem to find it, slowly but surely. Comparing to Numb it has less, but comparing to the views and pages being uploaded it's doing oh so much better.
I don't promote it as much, since the updates are more random and I do think that the fact that mystery genre doesn't have as many comics under it as slice of life for example, it's easier to get noticed. Anyhow neither of these comics isn't exactly popular yet, but both are getting slowly rising with traffic every month. Numb faster and more steady, Little Tales gets more big tips with every update time, but not so often random views.
I hope there was something helpful for you
Edit: OH AND as a reader I prefer to have more often updates. I often go through my reading list and if I've managed to forget the comic I drop it. So if it has fewer updates the quality has to compensate and make me remember it if I'll see it again in 4 months.