Depends on how sensitive you are to estrogen related sides. The goal is to control estrogen not obliterate it. Aromasin is a good option but the problem is you can overshoot the mark and severely lower your estrogen, which as we know, can have a negative impact on the body. With nolva, you cannot overshoot the mark, so in terms of ease of use, nolva is best. But, assuming you know how to use aromasin, it is also a good option. Really up to you bro!