Pendragon receives first place, though I like quite a few systems' stat setups. It goes as follows:
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Statistics - Size, Dexterity, Strength, Constitution, Appearance. From these are derived such secondary stats as Damage, Healing Rate, Movement Rate, and HP. 3-18, kinda.
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Personality Traits, in pairs (usually these... Chaste/Lustful, Energetic/Lazy, Forgiving/Vengeful, Generous/Selfish, Honest/Deceitful, Just/Arbitrary, Merciful/Cruel, Modest/Proud, Piuos/Worldly, Prudent/Reckless, Temperate/Indulgent, Trusting/Suspicious, and Valorous/Cowardly). Can be tailored to campaigns.
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Directed Traits (e.g., specific Trusting or Mistrust scores).
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Passions, such as specific Loyalties (e.g., lord, vassals, etc.), Loves (e.g., family), Hospitality, Honour, specific Hates, and so forth.
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Glory, which is something like XP on the one hand, and absolutely nothing like it on the other.
In a Wicked Age would have to be another fave, and an even less "old school" system, I suppose:
* Covertly, Directly, For Myself, For Others, With Love, and With Violence. Each is represented by a die type.
* Particular Strengths, and Best Interests.
More traditionally,
Interlock:
* Intelligence, Reflexes, Tech (fine motor stuff / technical aptitude), Cool (aka Willpower), Attractiveness, Luck, Movement Allowance, Body (is both "Str" and "Con"), Empathy.
* Optionally, Psi as well. 1-10, mostly (as are the above stats).