Permanent Immigrants get a right to live and work in a healthy environment where rule of law is followed by all concerned.

Dependent children of Permanent residents get the benefit Higher International education for children at highly subsidized fee and in some cases free education.
The permanent resident visa holder enjoy World class quality of life.
Permanent Immigrants [...]

EB-1—Priority workers include persons of extraordinary ability in the arts, sciences, education, business, or athletics; persons of exceptional ability or with an advanced degree in the Sciences, Arts or Business.
EB-2—This category includes professionals with advanced degrees or persons with an exceptional ability in the Sciences, Arts, or Business; qualified physicians practicing medicine in under-served areas [...]

For migrating to USA, one needs to apply for the H1B visa. The employer and not the employee apply for this visa, for a period of up to six years. The employer then invites the employee based on the H1B visa issued to them.In other words, the H1B visa is an occupation-specialized visa that is [...]

f you are not a citizen of the U.S. and like to enter the U.S. you need to get permission, called a visa. You have to apply for a visa. However obtaining a visa does not mean that you have been granted permission to enter into the U.S. You can only request the immigration officer [...]

A1 Visa Head of State or Government, Ambassador, public minister, career diplomatic or consular officer assigned to the U.S., and members of immediate family.
A2 Visa Foreign government officials on official business or employees of diplomatic or consular missions in the U.S., and members of immediate family
A3 Visa Attendant, servant, or personal [...]