My two favorite for content are ATW
and Airline Business.
The former has better feature writing, the best coverage of A/C leasing, and the special issues are outstanding (traffic report, regional, airports, etc).
The latter has a more international flavor and is more well-rounded, IMO and I enjoy reading it immensely. Very good interviews, arguably better than ATW
in many ways.
Both have useful stats and traffic figures, etc.
The news blurbs each print though are well out of date by the time I receive, however, so timeliness isn't a great attribute of either from a news standpoint.