Flying right now with an FE that worked at Southern one time in his career. He said they weren't as organized as World in some ways. For example showing up in some 3rd world country and Southern would have nothing set up. No ground handlers, etc. Of course World drops the ball every now and then but not too often. The most important thing to consider coming to World or most ACMI's is that at some points you can be gone for a long time. I'm pushing 2 1/2 weeks on the road right now. But they own me til the 20th and I can't complain. I've seen a bunch of different countries and drank a bunch of beers in the last 2 1/2 weeks, and I loved every minute of it.