The Ultimate TV ad just gave me error messages (Mac/IE 5)... I do like the little moving ads as well, but ONLY IF the DON'T have sound! Nothing bugs me more than a website that suddenly starts making noise at me. ;)
Personally, the ads I like most have been the new "skyscraper" format, with flash animation used in them. A skyscraper ad with a background that matches the website it's displayed on can create a very interesting visual effect. They [i[almost[/i] blend in...