Youll only find out if something is better, for you, by experimenting and trialing. There's no guarantees.
What will be "best", will depend on what your current weak areas are. Cos you will tend to see the most dramatic response by improving weaknesses.
And by weaknesses I just mean, are you chubbyish, or lean? Do you push fairly decent weight on the bar or does that lag a bit?
A chubby dudes bulk, the drugs used, should potentially look different to a leaner guy. A guy who really wants to also put emphasis on pushing strength might use different drugs to a guy not so concerned with that.
I agree here with Broderick Chavez: there is no 1 best bulking drug For Everyone. Cos everyone has different response and side effect profiles to drugs, and different weaknesses.