Below is the last topic I posted in the old thread about POVs.
Currently I alternate one chapter per MC (one Joseph chapter, followed by one Apollo chapter, etc.). Caligula got one chapter because I needed Apollo dead for the story to work. Caligula turned out to be a great character to write for, though. Were I to get inside the heads of key characters, I probably couldn't do a plot like the one Caligula hatched, but it would allow for more interesting secondary characters. I could get into the head of Apollo's father, who's a full-blown psychopath. I suppose I could try to make the secondary characters more interesting through the eyes of the MCs without adding additional viewpoints.
Should I keep with just the two alternating POVs, or open it up to other characters? What about Dune-like head-hopping? I plan to self-publish, so I'm not sure if I should worry about limited POV. Clearly, however, writers on this site strongly recommend it. I wonder what a non-writer thinks about head-hopping. Do they even notice? Also, does anyone know what POV was used in the Harry Potter series?
K, are you for or against additional POVs? I gather from your post you're against it. I always thought that Jessica's POV was very useful, especially when they first meet the Fremen. Admittedly, Frank Herbert could have written some (all?) of her POV as dialogue with other characters, especially Paul.