E or C always gets the nod for someone who hasnt used steroids. Why would one suggest test prop? Its painful, it has to be injected ed or eod. More injections lead to possible complications.
All test is going to give the same outcome, so if all things are equal, why not go with something you have to inject less.
Now, it is true that the longer acting test can lead to estrogen build up. However, i dont think it is significent enough to put yourself through a painful test prop cycle.
Just my opinion...