In a poll of a representative sample of a province's residents, the provincial capital was the city most often selected as the best place to live in that province.
Evidence
In a poll of a representative sample of a province's residents, the provincial capital was the city most often selected as the best place to live in that province.
The capital is also the largest of that province's many cities.
Conclusion
Most residents of the province generally prefer life in large cities to life in small cities.
Evaluate
There is a difference between a city being most often selected as the best place to live and being the place that most people prefer to live. The argument mistakes a plurality with a majority.