I think these are 2 different products based on your expectations and application.
Meguiars
Probably the best conventional wax out there. Nice shine, easy to apply and like all waxes, doesn't last long. I use this on my wife's minivan and it's fine. Next, we have Zaino, only use this product if you;
a) Enjoy a rich deep shine to your paint
b) Find spending time with your car enjoyable and almost therapeutic
c) Improving the way your paint looks deeper and deeper with every application.
d) Want a finish that stands up to bird crap, rock salt and tree sap
e) Don't mind spending a few bucks, because your car is worth it

I have been using Zaino for 3 years now and in my humble opinion blows away all the top brands out there.