I don't think we know enough about Adonalsium to speculate about what Hoid is trying to do.
We don't really know what it was, what life was like before the Shattering, what caused the Shattering, whether the Shattering was a good thing or a bad thing (or something else), how Hoid was involved, or really anything at all.
About the whole Vin thing in HoA, Brandon said "too observant for her own good". This implies to me that:
a) it was her own instincts and observations, not anything that Ruin or Preservation did.
b ) if she had met with Hoid, Hoid would have helped her.
One more thing. I vaguely remember hearing that Brandon said, in regards to the Suvudu Cage Match, that if Hoid had participated, he would have swept the floor with everybody else. (powerwise, of course. He might not have actually won the competition.) What that means, I don't know.