Well take a look at what you want.
Some important items:
There are very few VA's that operate well out of a "Freewebs" site. A propperly done website without pop-up ads does say a lot about what goes on behind.
Look at requirements to join VATSIM/IVAO. If you are not a member and are not interested in joining either then dont bother.
Your type of flying also dicates what VA is right for you, personally I am in the mood for flying Props, so I do a lot of flying for 2 ATR Operating VA's. If you like a particular airline, there may be a VA dedicated to them.
Not all VA's have to be based on real airlines, there are excellent VA's that are completely fake. It just depends on what you want.
Finally, dont join 20 VA's at once. It will save on the inactivity emails.
