FPTP satisfies two out of three Arrow's conditions (unanimity and universality). It does not satisfy independence of irrelevant alternatives, but in this sense

FPTP satisfies two out of three Arrow's conditions (unanimity and universality). It does not satisfy independence of irrelevant alternatives, but in this sense only dictatorship is better (which satisfies all three). If you exclude dictatorship as trivial solution by adding it as the fourth condition, no other voting system can be objectively better (satisfy more than three out of four conditions). You may prefer some side effects to others, but any such comparison is going to be subjective.