Stats...

[DragonX2]

If you have 20 strength you get an extra +1 on your WC (weapon class)
If you have 20 dexterity you get an extra +1 on your AC (armor class)

Barbarians, Thieves and Sorcerers start with 8 AC.
Warriors and Alchemists starts with 9 AC.
Priests start with 10 AC.

Barbarians start with 17 WC.
Warriors start with 18 WC.
Thieves and Priests start with 19 WC.
Alchemists and Sorcerers start with 20 WC.

Some info was contributed by ChocoboGrn. *grumble grumble*