Crikey 500e, Sven is right, opinions vary about the subject of blade balance about as much as the JFK theories. Lets just say that the science and art (For it is surely both of these) of blade / rotor balancing starts in the blade manufacture and becomes a process rather similar to painting the Forth Bridge.. i.e. endless.
I would say that there is no one parameter more important than the other, however the sequence and manner in which each adjustment point is dealt with is crucial to the whole equation.. and that old boy is where each man has his own take on it.