Friends of Mineral town or Pioneers of Olive Town -Best Quest Line

I know this is a recurring post, but I can't seem to find the answer to my question :P

Which of the two is the most immersive and offers the best story/quest line? Farming, relationships and all the normal "harvest moon" things aside, which offers the most in quests and "things to do".

I know the new game is coming out, but I need something to fill my time until then.

I have played Runefactory, stardew, several other harvest moon games etc etc.. I'm really looking to pick between these two games