I'm partial to the US publication <a href="http://www.privatpilotmag.com" target="_blank">Private Pilot</a>. Lots of good stuff for everyone from the student to the Learjet owner- tips on flying, legals, product reports, etc. My favourite features are Destination, profiling a specific airfield and the surrounding region, and Flying Art. The only weakness is that it tends to be USA-centric, so most Destinations pieces are about North America and the procedures tips are based on FAA practices. Still, I do tend to read it cover-to-cover, not something I do with the average mag.