There's not much to comment on, really; it's quite a subjective matter.
Element: Fire, Water (Ice), Grass (Ground)
Common: Normal, Flying, Fighting, Bug
Mineral: Steel, Rock, Ground, Ice
Medicinal: Grass, Poison
Phenomena: Ghost, Electric
Supernatural: Psychic, Dark, Ghost
Mystic: Dragon, Psychic, Dark
I could drag this further if I wanted. Like I said, it's subjective.