First of all there is a different between Latinos and Hispanics…the first source is always best: definitions.

From the dictionary:
His?pan?ic
1. Spanish.
2. Latin American: the United States and its Hispanic neighbors.
3. Also, Hispano. Also called Hispanic American. an American citizen or resident of Spanish or Latin-American descent.

Latino is more south american and Hispanic is more central america. puerto rico dominicans etc.
spain is european and r called spaniards. not hispanics not latinos.
reason hispanic came too is because most central americans r a mix of spaniards native americans, whites etc.

Spanish
1. of or pertaining to Spain, its people, or their language.
2. the Spanish people collectively.
3. a Romance language, the language of Spain, standard also in most of Latin America except Brazil. Abbreviation: Sp, Sp.

La?ti?no
a person of Latin-American or Spanish-speaking descent.

The term “Hispanic” is still preferred by most and will continue to gain popularity here in the United States.