Every time that I've played through the Tutorial, this is the class that the game suggests for me. Perhaps it's just my preference for sneaking, backstabbing and ranged combat because it certainly isn't for my ability to sweet-talk rats and goblins. Note that there are no skills from Strength, Endurance, Intelligence or Willpower. No offensive magic skills at all, so this is very much a class for sneaks.

Specialization Stealth
Favored Attributes Agility, Personality
Major Skills Acrobatics, Illusion, Marksman, Mercantile, Security, Sneak, Spechcraft