I used to think autoglym polish and meguiars wax...
However now I swear by claying, and using Jeffs sealant system - search for Werkstat Acrylic Kit. I find it far beter than polish/wax as you can put it over the whole car without having to worry about annoying white marks at the end!
Brought my light blue glanza up the best of anything ive used
Carcept 2 ( Professional stuff ) : great for smoothing out paintwork if the car has never been waxed or hasn't been waxed in a long time.
Meguiars Cleaner Wax: Good stuff not to my taste for some reason though.
Zymol Car Polish: i quiet liked this one. it's a very very light polish so the car has to have a good finish, this will improve it a bit but will not be as dramatic but after 4 or 5 applications the paint is flawless
i have used quiet a few more will add later if i think of em
well i would advise anyone to try the clay as it does magic to the paint ! I First use the Meguiar's claybar then use Autoglym super resin polish then apply Meguia NXT generation wax and it gives a very good result
dont know his name, but he works in the car wash opposite my work, handy when i cant be bothered to to clean my car, as i helped him out once he does them for free. best polish for me. lol