How to pick the best strain

sativas in general take longer to grow than indicas. they are more "psychedelic." indicas tend to yield more than sativas due to their bushy growth, thats why there are so many sativa indica hybrids. a 100% indica will yield more than a 100% sativa every time.
i think one of the most important issues you need to tackle is odor proofing your grow room and making sure you minimize your heat trace.