I did some searches on here for car wax and seems like there are a lot of comments about what people like but I couldnt get much on the way of camparison so here's what I was able to dig up. enjoy:

From Consumer reports:

Here are the top 5 performing waxes according to Consumer Reports (5/00):

Zymöl Cleaner Wax $16.00 16 oz. Liquid
Prestone Bullet Wax 7.25 16 Liquid
Nu Finish Car Polish 6.22 14 Paste
Armor All Car Wax 5.57 16 Liquid
3M One Step Cleaner Wax

Here's some comments on the waxes:

None of these polishes will be all things to all people. Even the highest-rated products fell down somewhat in one or two areas of performance, so choose according to your priorities. If water still beads on your car's finish, you may not need to wax at all. Simply wash the car regularly.

Among the high-rated polishes, the Prestone Bullet Wax, about $7.25, and Armor All Car Wax, about $5.55, lasted the longest. But neither one quite matched the gloss that the Zymöl and Nu Finish paste produced. The Armor All scratched or hazed more than most.

For a moderately weathered finish, 3M One Step Cleaner Wax 39006 liquid is the clear choice for its cleaning ability--that is, if you don't mind waxing more often. Its durability was only fair. It costs about $6.45 for a 16-ounce bottle. For a badly oxidized finish, you may need to start off with a polishing compound, available at auto-parts, discount, and department stores.

If a shiny finish is your paramount concern, first consider Zymöl Cleaner Wax liquid and Nu Finish Car Polish paste. But be prepared to make some compromises. The cleaning ability of both products was so-so, and Zymöl's durability was just middling. Also, the Nu Finish tended to scratch or haze somewhat, a problem especially with dark-colored cars. The Zymöl is also quite expensive, at $16 a pint. The Nu Finish costs about $6.20 for a 14-ounce can.

Among the high-rated polishes, the Prestone Bullet Wax, about $7.25, and Armor All Car Wax, about $5.55, lasted the longest. But neither one quite matched the gloss that the Zymöl and Nu Finish paste produced. The Armor All scratched or hazed more than most.

A convenient applicator made Prestone Bullet Wax easier to apply than any of the other liquids and pastes we tested. Although spray polishes win hands down for ease of use, they aren't effective on cars with a very dirty or oxidized finish. And be prepared to do the job often; the durability of the sprays we tested was no better than fair. Of the three sprays, Turtle Wax Express Shine Spray Car Wax performed the best overall.

The complete ranking is here:

http://www.9news.com/consumer/autopolishes.htm

that and this link here was semi useful on new vs old waxes:

http://cartalk.cars.com/Columns/Arch...August/05.html

Happy Waxing

-Bill