Best and worst supermarkets
By Ellie Simmonds
Article 1 of 13
We've quizzed nearly 7,000 supermarket shoppers on everything from queues to value for money to uncover the nation's favourite supermarket for 2018.
The UK's definitive supermarket survey reveals the best grocery stores and websites - as well as those you might want to avoid.
Supermarkets compete fiercely for customers, and it's getting harder than ever to know which ones have the best deals, offer great-quality food, and give you five-star service to boot.
We asked 6,800 supermarket shoppers to tell us what they really think of their supermarket, so we can tell you which are the best - and the worst.
We've rated all of the major supermarkets, from giants such as Tesco and Sainsbury's to discounters Aldi and Lidl. We've also assessed online grocers like Ocado and Amazon Fresh to see which will bring you the freshest produce, and offer convenient delivery slots with stellar driver service.
Only logged-in Which? members can view our exclusive scores and ratings in the tables below. Once logged in, you can find out which supermarkets received the highest customer score and which were rated best for value for money, store appearance and other factors. The ratings are based on our survey of 6,800 members of the public about their supermarket shopping in October 2017.
You can also discover which own-label products – from Champagne to cheese to smoked salmon – we rate as Best Buys.
Not yet a Which? member? Join now to get instant access to our supermarket results and all of our online reviews.
Top supermarkets for shopping in-store
|Supermarket stores 2018|
|Supermarket||Store appearance||Queuing time||Staff availability||Range of products||Quality of own-label products||Quality of fresh products||Value for money||Customer score (%)|
|Marks & Spencer (857)|
Top supermarkets for shopping online
|Online supermarkets 2018|
|Supermarket||Convenient delivery slots||Choice of substitute items||Range of products||Quality of own-label products||Quality of fresh products||Driver's service||Value for money||Customer score (%)|
|Amazon Fresh (98)|
Which? members should log in now to unlock the full results in the tables above. Not yet a Which? member? Join Which? now to unlock our results. to unlock our results and to get access to all the reviews on our website - from washing machines to cars.