Airliner World in the UK used to be good, but it has gone downhill and has been for a while, so I rarely get it if all. A lot of the GA mags offer a really good read, Flight International is good too. Insight is better than tons of pictures which you can look @ on here free!
LAST FLIGHTS= Ryanair LPL-BGY-LPL - EI-DPS/DWV - MAY 08 // NEXT FLIGHTS= TBC
I used to be a regular reader of Airways, Airliners, Airliner World and Airports of the World, but for some reasons related to my own life I've more or less stopped it. Partly because my interest for aviation has greatly diminished over the last few years, but also because Airways and Airliners are not anymore what they used to be. Airliner World is rather good but as Ryanair737 said, it is also going downhill. However, the weekly Flight International is still a very good despite it's not only about commercial aviation.
But I believe it's hard to keep up the level month after month. Airliners used to be published four times a year before going to six, and Airways started with six issues a year in 1994 before becoming a monthly magazine in 1998.