Depends on perspective
A hard choice for a young chap. FYI I knocked back a reputable airline prefering Corporate. Airlines give you a more predictable lifestyle and potentially more money, but oh so boring. Some of my mates claim to like it, but most hate it. Corporate on the other hand has a mix of highly professional people and some completely useless bastards. Unfortunately the regulatory environment in corporate is not as tough and while some organsations and small operators have high standards, some do not. if you decide on the Global do your research. On the other hand it is much more rewarding from my perspective. Much more involvement in the trip and lots of different places to visit. Down side is it is very hard on the family and you.
Good luck