scored 87 out of 100 in CFI Group's UK Customer Satisfaction Index for the retail sector. The survey covered -- from highest scoring sector down -- online retailers, department stores, petrol stations, supermarkets and electrical retailers.
John Lewis, often seen as the gold standard for customer service, scored 80 by comparison and topped the list of department stores.
The average score for online retailers was 82, with coming in with 85 and with 82.
The lowest scoring retailers were Somerfield, which is being absorbed by the Co-Operative Group after a £1.6bn deal agreed last summer, with 61 and Currys/Dixons with 69.
The average score overall was 74.8, close to the US retail average of 75.2 reported for the same period by the American Customer Satisfaction Index.
According to CFI Group the ACSI is used in the US as a prime indicator of corporate performance and economic strength, but this is the first time the methodology has been applied to the UK market.
The findings cover the fourth quarter of 2008 and were gathered from nearly 6,000 customers' experience with retailers.
Amazon and Play were also top of another .