I'm a happiness maximizing utilitarian, though a functioning legal system needs to act as though it were either deontological or rule-based utilitarian in 95% of cases.
I think these are really important:
1. Safe and efficient technological advancement.
2. Effective defensive measures against existential threats.
3. Intellectual, creative and political freedom (to reasonable practical limits).
4. A level of earned trust in necessary institutions, e.g. low levels of corruption, safe drinking water, etc.
5. More controversial but a high level of talent being drawn or otherwise instantiated in your society.
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