Theres no "Best out there" Some people React different to compounds, Ive seen people who gain 2lbs off superdrol and Ive seen people who gain 20lbs off it, also Ive seen logs where some have gained 22lbs on Hdrol, Just all depends on your body, Everyones different, And so is thier body, Therefore they are gonna react different. Only thing that will not change from person to person is your diet, That is key to any gains you want. So The answer to your question would be Diet