If you want to min-max there are a few simple builds for maxing various stats:
Max physical attack power: Fighter 1-10, Assassin 11-200
Max physical attack power (for pawns): Fighter 1-10, Warrior 11-99, Warrior or Ranger 100-200
Max magickal attack power: Mage 1-10, Sorcerer 11-200
Max HP: Fighter 1-10, Warrior 11-99, Fighter or Mystic Knight 100-200
For the max HP build obviously Mystic Knight is only for min-maxing your Arisen; Pawns have to use the Fighter path from 100 on. Both Fighter and Mystic Knight gain 15 HP per level, so which one you choose doesn't change the final HP total. Mystic Knights continue to gain magickal attack and defense post-100, Fighters don't.
The Assassin build ends up with significantly higher physical attack power than the Fighter -> Warrior -> Warrior/Ranger build, so don't use the pawn build for your Arisen. It's got more variety in the classes you use, but it's statistically worse.
This is all assuming that stat growths haven't been changed in Dark Arisen, of course. If they have, then obviously these builds need to be reworked.
That'll work fine. There's not really any bad build short of, like, taking nothing but Sorcerer levels then switching to Warrior at level 200. Unless you set out to actively screw yourself over the chances of actually screwing yourself over are virtually nonexistent.
