Temperature uniformity (my translation: Will it even out heat spots?) 2. Reactivity and toxicity (Will it poison me?) 3. Hardness (Will it dent?) 4. Simple strength (Will it survive being dropped?) 5. Low stick rating (Will my dinner get glued on?) 6. Ease of maintenance (Will it wash easily?) 7. Efficiency (Does it conduct heat well vertically through the base?) 8. Weight (Can I lift it?) 9. Cost per unit (Can I afford it?)