As the title.

Asia & Oceania:

Like Cathay Pacific, Singapore Air, Air New Zealand

Hate airlines of Communist countries (except China)

Europe:

Like Virgin Atlantic, British Airways & Swissair

Hate Aeroflot, Olympic Airways of Greece, and East European airlines.

Middle East & Africa:

Like Emirates, Gulf Air

Hate most airlines except Emirates, Gulf Air, South African Airways, Egyptair

USA & Canada:

Like US Airways & Jetblue

Hate Delta

Latin America:

Like LanChile & TAM of Brazil

Hate Cubana

Welcome for expressing your opinions.