To be clear the discussion is not to unban either, but if either were legal during a modified ban list legacy event which would be better to run?

Both are 1G costing permanents that likely win if you untap with them.

Hermit Druid dies to swords/bolt/dismember etc. survival doesn't.
Survival allows you to play basics, hermit druid scoops to blood moon.
Hermit druid can't win through leyline/rip while survival can aggro out.