Because of Sust's propionate and phenlyprop esters, the results will come on sooner, but in the long term, the results will be the same as far as the gains, because test is test. So the only difference in the esters are how soon the test becomes active.
The isocaproate and decanoate esters of Sust and the enanthate ester are all longer acting. So several weeks into a Sust cycle, and several weeks into an enanthate cycle, the results become the same.
My personal preference is enanthate with a 2 week frontload.
KB