1-1000watt light hung verticaly with cool tubes. 1 plant 6' tall when you START 12/12. Tie the plant up so it encompasses the verticle lighting.
All the brances will seek the light and "grow" twords the light source. You must tie up these brances so they are in a great position to get light.
You will get at least a lb of dried herb.
Quick and easy.
BUT...THG has it correct. There is no magic strain that will produce for everyone. There are too many factors.