I suggest HP for you, you are the tank. You will need hps. You do not have large heal skills. The Human skill trait is NOT the same thing as the Favored Class bonus.
There is no class called Dryad in Pathfinder. Druids may not be what you think they are. They are a mix of martial and spellcaster. Druids (and clerics for that matter) can go either route.
I suggest he goes the martial route. It will be somewhat easier. Will he be as good as a paladin initially? Nope.
Will he be more versatile eventually? Yup. Hard to argue with a person when they can turn into just about any animal, elemental, or plant and beat the crap out of you. Even a paladin has a hard time against that.
Flame, I already did post my view on his character back on page 4 or 5.
I gave him several options. Martial, Battlefield control, Summoner. These are the three routes for a druid. Which does he want?