I quite like the series of tv ads promoting Singapore to Australians tourists. I liked Singapore after spending a few days there in 2008. A friend has swum in the pool featured at the end of clip. Magical.
However, Singapore Tourism had an epic fail with their promotion of Singapore to Filipinos. It is close to one of the most excruciating advertisements you will ever see, so bad it is almost hypnotic. The ad has been taking down by Singapore Tourism, but removing things in these days of the internet is not so easy.