Its just like any other wood instrument ie pianos, guitars, basses, violins etc it is all about the sound of the player. If the player does not know how to bring the tone out of his/her instrument it doesn't matter if it is the greatest made instrument in the world he/she will sound mediocre at best and like crap simply on great gear. The lack of ability to play through and instrument degrades the instrument itself. Tuning, Approach/Touch and Listing are the key to making any instrument sound good and making a great instrument sound magnificient.
Answering ur question directly though the sonic needs of the piece of music or playing situation will determine the subjective "best blend". Which also includes the head choices and mic choice(s) & mic placement as well as EQing. Not to mention the often overlooked stick choice.
Blending woods is not new to drumming. Technology has just expanded the number of choices we have. Now woods that were very hard to work with are able to be tamed. Watch what is going on with guitar making to get a glimpse to where drum making may go in the near future.