What are the best heads for a Mapex M birch with tom sizes of 8" 10" 12" and 14"
The best choice of heads for your drums depends on how you want them to sound, feel, and on the kind of music that you play. Remo and Evans both make excellent quality heads.
If you go to Hints for Tuning Drums, you will find descriptions of the basic types of heads along with information about the sound qualities of each type. There are also links that will allow you to see each type and get more information.