If you are looking for jobs in Asia, Airbus rating will be more beneficial for you. Just look at the hiring ads online you will see most of them are looking for bus drivers. Air Asia, Jetstar, Tiger, Hong Kong Airlines, Dragonair, Transasia, Air Macau, Cebu Pacific, Vietnam Airlines and most short haul operators in China are A320. Some operators are in the process of retiring their 737 and switching to the A320.