I do not think there is a "correct" or "best" answer to your question. Each owners experience and the area and related weather will be different and of coarse the question in it's self can only be answered with subjective experiences vice some kind of measurable parameters.
I have used both Adam's carnauba paste wax and Maquires Ultimate paste wax. From my perspective I prefer the Maguires. It is much easier to acquire (most auto stores have it) and I'm pretty sure it is less expensive. I think the Maguires is a bit easier to apply and polish off, and it seems to have a better, longer lasting shield/protection for the paint. I will buy Maguires next time I need to purchase wax for my care. I also will be purchasing Adams again as some of their products I think are best in class, just not the wax.