How would you rank the 3 pitches in regards to difficulty to implement?
From a dev POV:
Easiest = Shamanism
Middle = Taming
Hardest = Sailing (so many expectations/player suggested demands)
But on the flip side you may also end up in a situation where the reward space for Shamanism is more difficult to balance and could take longer to implement depending on what the community prefers. So it's anyone's guess really and we'll know more about scope once we know which concept you all prefer