How to make a good filter coffee? what is the ideal mix of water and coffee powder?

WHAT ARE THE IDEAL MIXTURE OF PEBERRY, PLANTATION AND CHICKORY? WHAT IS THE IDEAL RATION BETWEEN COFFEE POWDER AND WATER TO BE POURED IN FILTER? I AM REALLY CRAZY ABOUT THE GOOD FLAVOURED COFFEE MADE IN TAMIL HOTELS. BUT THEY DO NOT REVEAL THEIR TRADE SECRET.