I MAY be wrong but I read some where that true blue panthers aren't seen that often but like I said I may be wrong on that. I think the red or blue bar are the most common ones
Ambilobes are seen the most.
Also common are Nosy Be (which are blue, sometimes with a hint of green), Ambanja (which are also blue with white, sometimes red, purple, and sometimes hints of yellow), Sambava.
Some not so common are:
Nosy Faly
Nosy Mitsio
Nosy Boraha
Maroantsetra
Masoala- I have one
Cap Est