I suggest you start with the Jac. That will be the easiest one because the Dicodes uses Joules instead of watts and I have heard it can be confusing(I do not own one). Maybe asking this same question in the mods section or the building section of ecf would bring you much more info than I can supply here.Thanks! That is what I wasn't sure about is the watts, so they get set too along with temp. Anxious to try it. My two TC mods coming are a Jac and a Dicodes Dani Mini.
eta I think I forgot to mention in my last post that you start with picking the type of wire you are using. ie. Its is called the mode and pick ss if you are using the stainless steel.