Really depend on the game and setting.
For fantasy: Wizard/Battlemage (I like my wizard with defensive capability, either through defensive spell and/or melee capability), Dwarven Warrior (the Dwarf part is extremely important), Cleric/Battlecleric (I like my cleric with melee capability, in other word I like AD&D cleric, preferably a Dwarf, but optional unlike warrior).
For science-fiction: Tech based class
For the morality, it really depend which one is the first.
- The wizard, Iniudan, will be neutral good.
- The defensive Dwarven warrior, Gorglim, will be lawful neutral.
- The offensive Dwarven warrior, Nimlim, will say neutral, but not sure in his case, he is loyal, honest, diligent and kind but he also wroth, violent and obsessive.
- The cleric will switch between lawful good, neutral good and lawful neutral depending on how I feel.
For science-fiction depend on setting for the morality side.