I'm a fan of all the Meguiar's Gold Class items, for ease of application and scent above all else.
I believe the Ultimate is the best choice if you want the newest technology, but the paste gold class is just luxurious to apply.
And for the car wash -- the gold class also. Smells really good and produces thick suds.
They are both good. The Ultimate is a synthetic wax so it will last longer. If you have a black or close to black vehicle I would use the Ultimate for sure. I personally use Gold Class soap and wax.
And yes the Gold Class soap does smell good.
I used to use the cleaner/wax. But the deal is once you do a polish, the surface is so smooth, the wax goes on so smoothly and quickly it is hardly a bother. So it’s not twice as hard/long to do separate steps. More like 1.4 times the effort. And the results are much better and longer lasting.
Even when I used to do it by hand, I preferred at least the two step to one combined cleaner/wax.
I have discovered plumber’s putty makes an excellent medium clay. If you are hesitant to try clay because of cost or tracking some down, just try that. You will be surprised how easy it is, and then how easy it makes the next steps (presuming you need that level of prep).
i used both and both are good.... ultimate lasts a bit longer but feels and looks slightly different. the key is proper prep... use a good clay bar--i prefer the blue clay magic then either of those waxes and you'll be good.... you could use the ultimate during times when you don't wax as often like winter---