I got a preview of Tropical Fish Hobbyist a couple weeks ago. It's a pretty cool magazine. They cover all types of fish and have Q&A with many experts including Jack Wattley.
I get Tropical Fish Hobbyist(the best one), FAMA, and Aquarium Fish Magazine. If you only have to pick one get TFH.
TFH = for everyone. They have their share of newbie articles and advance articles.
FAMA = tons of ads
Aquarium Fish is more for the newbie and casual hobbyist, imo.
I subscribed to all 3 over Amazon.com. They have some pretty decent subscription rates there.