Which? have just published their Internet Service Provider survey.
The results are not surprising: once again the providers that spend lots of money on advertising come bottom of the pack. They're the large providers, that you'd heard of like Talk Talk, AOL, Orange (formerly Wanadoo or Freeserve), and Tiscali.
The top three providers were Global, Waitrose and Zen. These are companies that spend their income on service provision, not advertising.