The only thing that changes with different esters, is the realease time of the testosterone. Yet, the active substance is just the same, so you will be getting the same benefits with all forms of testosterone. The only difference will be the injection schedule. Since you are going to use deca, I would strongly recommend using something long acting, like the enanthate or the cypionate - makes things much more convenient with the injections, and both steroids will act in unisone, which is also great and adds hormonal stability.