I find the Farfetch'd one and the island one most interesting.
The farfetch'd one can be quite straight forward, except if our pokemon are (semi)wild, they may not be on the trainers side
The island can hide a lot of interesting things, both dangerous (Like team rocket or tyrant pokemon) or it could just be the Noctowl wants it for itself (or have a family out there). It could also be a test the Noctowl is given, and it give a lesson/reward for the ones who are brave enough to go out there? It could also be sacred for some pokemon, so it is seen as a great disturbance or sin to go out there, if not doing something specific. I hope we can agree of a plot/reason for what is happening (something similar to the ideas I threw in the air), I work best if I have a broad idea of where the story is going
I think I'll be going with either Astrid's zubat or smeargle.
After looking at them again I am thinking the Island one might be a little bit more interesting as there are so many ways to take the Noctowl's warning about the island as Tarlar mentioned. If that is ok with you I could start up a thread when I switch to my laptop after dinner.