Which Scenario Do You Prefer?

I am busy working away on Phoenix Tamer's fifth chapter, but I wanted to involve the community with a small vote on the content of the story. I feel that I should mention that this story is mature rated for containing a significant amount of sex, sexual themes and some gore.

Should I make it purely Original Character x Sunset or should I turn it into a harem story?

If I do turn it into a harem story should it be limited to the humane 6 (excluding Twilight Sparkle and before Sci-Twi) or should I expand it to involve background characters as well?

I have one question for you: I normally post my stories when I am completely done writing it, but would you prefer that I post it chapter by chapter or do you think I should just keep posting complete stories?

Edit; I think I have decided to keep the primary pairing to be limited to Original Character x Sunset , but I will try featuring some of the more popular character pairings, such as, Flutter-Dash, Apple-Pie/Pinkie-jack (possibly be a pairing... I'm not sure which way the name is arranged) and Rari-Mac. The pairings aren't set in stone as of yet, so they are subject to change.

I think I might try posting my stories on a chapter by chapter basis and see how that goes... who knows I might like that method more, plus that could provide all of you more content from yours truly.

-DM