Armor: Mail and Plate.
Weapons: Sword, Hammer and Mace. I'm not a fan of a Paladin with an Axe, it seems to me more a weapon for a Fighter or a Barbarian, but I don't see why a Paladin couldn't use it if he wants. In fact, I believe he could use almost all martial weapons, as a Polearm too.
And Shield, of course.