Well, I for one say stay in the main arena and fly fighters! Yes, there is continuous bombing, but there is always continuous fighter action! I have never tried other arenas just because I find the MA totally challenging. If you find some people to fly with consistently (even if you don't join a squad) the game gets even that much more fun....and, you get to start rackin up the killz. That being said, try to avoid diving straght into every fight. Diving straight in is a sure ticket to a new plane. Fly to the strengths of your plane, your skill, and to the demands of the situation. I am sure the other arenas are fun, but for me its MA or bust!
Bockk