Sky Broadband top for clarityNews brought to you by Skint Tariffs, providers of cheap broadband deals.
Four of the broadband providers Skintarriffs.com has deals with were rated among the top ten in the UK.
A survey of 4,000 broadband users ranked Sky Broadband as the provider with the best "clarity of pricing and billing".
The provider was ranked second over all, with Tiscali and Virgin Media also making the top five.
Respondents were asked to make judgements about each provider across six categories: quality and reliability, download time, clarity of billing and pricing, after sales support, value for money and speed of service activation.
Orange came bottom of the rankings, with Michael Philips, product director at the firm that organised the survey, Broadband Choices, saying that after-sale support had let the mobile phone provider down.
He said: "Bad service is one of the contributing factors that is driving UK broadband customers to swap ISPs in the search of a better deal."
Tesco came second last and he urged the supermarket chain to make changes to its offering if it wanted to stay in the game.
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