Where would you tell a friend to live?

[PaulW]

If you've read up on the volcanic history of the Big Island you'll know that
Mauna Loa is the sleeping giant that poses the greatest danger (to houses,
not people).

Now look at this map and figure out where Hilo is, and where HPP is.
HPP is on the safe side of the Mauna Loa / Kilauea divide.

http://pubs.usgs.gov/gip/hazards/maps.html

Another reason to pick HPP!