There're countless amount of threads on this board, that prove the point that Test is Test is Test, and only difference between brands is in ester. Ester delay the release of Test into bloodstream, that's it.
Longer ester is heavier, so fast acting brands will give user a little bit more actual Test, but the difference is not that big.
There's only one receptor for any brand of Test- Androgen Receptor, and in a matter of fact, for all the steroids, even we have to admit that action of some of them are influenced by they affinity to other receptors(Progest, for example, in case of Fina, Anadrol, Deca)
But, in case of Test, it's only one receptor!
What's a difference between Sustanon and Enanthate? Not much of a difference! Even Enanthate will create the illusion of slightly bigger gains, and more water retention, but it's just because it will pick in blood faster, Sustanon is more spread out in its action. At the end of the cycle, the results should be the same, assuming that dosage is the same.
Enanthate may give very slightly better results, because of not so effeciency of first two esters in Sustanon, for first two weeks, more uniform blood level, and due to the fact that Sustanon flue very often interupt training and rest of the user, also, a lot of guys don't like pain that Propionate ester in Sustanon causes.
Personally, I would go with Enanthate, it's a perfect kind of Test, especially for newbies. Also, in most cases, its much less expensive then Sustanon.