If you are talking about the most popular or common thing, call it predominant, like the predominant attitude among pizza is the best food, the result of which might be pizzerias being the predominant type of restaurant in an area.
The adjective predominant describes a person or thing with great power or influence, or something that is very prevalent. It comes from the Latin prefix prae-, “before,” and dominari, “to rule.” For example, because so many people like hip hop, it might be the predominant music heard at a school dance, or a famous trend-setter's predominant style of dress might be copied by people all over the world.
