Hussar
Legend
Ok, this is confusing me... is your only problem with class based NPC design that combat ability rises with level? If so, then isn't that more of an issue with how the class was designed as opposed to the general system. I mena you could just as easily have a commoner class with little to no combat advancement. I guess I'm not seeing how this one issue that is being harped on by numerous people makes NPC's with classes a bad system as opposed to 3.x being an implementation of it they didn't like for their particular campaign world.
Once you strip out all combat advancement from a class, what are you left?
Now, why do I need a class/level system for NPC's if all combat elements are being stripped out? If the only thing that advances by level for NPC classes is skills, then why bother? Just advance the skills.