There is no single "best" supermarket — and that is actually good news
The UK grocery market is one of the most fiercely competitive in the world. At last count, six major chains plus a growing cast of online-only players are all fighting for your weekly spend. That competition means lower prices, better quality, and more choice than shoppers in most countries enjoy. The flip side is that choosing where to shop can feel overwhelming. Each supermarket has genuine strengths and real weaknesses, and the "best" one for you depends entirely on what you value most — rock-bottom prices, product range, convenience, fresh food quality, or a combination of all of them.
This guide is not sponsored by anyone. We are not going to tell you that one chain is objectively superior. What we will do is break down what each major supermarket actually does well, where it falls short, and how you can use that knowledge to get better value from your weekly shop.
The discounters: Lidl and Aldi
Lidl
Twenty years ago, Lidl was the shop people felt slightly embarrassed to be seen in. That has completely changed. Lidl now has over 960 stores across the UK and a market share that keeps climbing. The model is beautifully simple: a limited range of mostly own-brand products, displayed on pallets and shelves without much fuss, at prices that consistently undercut the traditional big four.
The weekly "Middle of Lidl" aisle — where you can buy a wetsuit, a cordless drill, and a set of saucepans alongside your weekly shop — has become a genuine cultural phenomenon. People plan their visits around it. The bakery section, which turns out surprisingly good croissants and sourdough, adds to the appeal. Where Lidl falls down is range. If you need a specific brand of tahini or a particular type of gluten-free pasta, you may leave empty-handed. But for everyday staples — bread, milk, eggs, fruit, veg, meat — it is very hard to beat on price.
Aldi
Aldi operates on essentially the same philosophy as Lidl: small stores, streamlined range, aggressive pricing. Its "Specialbuys" aisle is the direct equivalent of Middle of Lidl, and equally addictive. What sets Aldi apart slightly is the consistent quality of its own-brand products. Which? blind taste tests have repeatedly shown Aldi own-label items beating well-known brands. Their wine range, in particular, punches well above its price point — if you have never tried a £6 bottle of Aldi red, you are genuinely missing out.
The downside is the same as Lidl: limited range and a shopping experience that prioritises efficiency over comfort. Aldi checkouts are famously fast, which is great for throughput but can feel like a competitive sport if you are not prepared. Neither Aldi nor Lidl offer a huge online delivery service, so they remain primarily bricks-and-mortar experiences.
The big four
Tesco
Tesco is the giant of UK grocery. With around 27 percent market share, it is comfortably the largest supermarket in the country. Its range is vast — from the budget "Tesco Value" line through the standard own-brand to the premium "Tesco Finest" tier, there is something for every budget and occasion. The Clubcard loyalty scheme has become central to the Tesco experience, with Clubcard prices offering significant discounts on hundreds of items each week. If you shop at Tesco regularly and do not have a Clubcard, you are overpaying — it is that simple.
The weakness? Standard prices without a Clubcard can be noticeably higher than competitors, which means Tesco effectively operates a two-tier pricing system. Some shoppers find this irritating on principle, even if the Clubcard itself is free. Tesco also has the widest range of store formats — from massive Extras to small Express shops — so the experience varies enormously depending on which type you visit.
Sainsbury's
Sainsbury's has carved out a position as the quality-focused mainstream supermarket. Its "Taste the Difference" range is genuinely excellent across the board — ready meals, fresh meat, cheese, bakery items — and the store experience tends to feel a cut above the discounters without veering into Waitrose territory on price. The Nectar loyalty card, while not quite as aggressive as Clubcard on discounts, still offers meaningful savings if you use the app and activate personalised offers.
Sainsbury's is particularly strong on fresh produce and has a decent free-from range for shoppers with dietary requirements. Where it struggles is competing on price with Lidl and Aldi on everyday basics. A basket of staples will almost always cost more at Sainsbury's, so you are paying a premium for range, quality, and a more pleasant shopping environment. Whether that trade-off is worth it depends on your priorities.
Asda
Asda has traditionally positioned itself as the family-friendly, price-competitive option among the big four. Its "Smart Price" budget range is one of the cheapest own-brand lines available in any UK supermarket, and the George clothing range — available in larger stores and online — gives it a point of difference that none of the other grocers can match. Asda tends to be strong on bulk buying and multi-packs, which suits larger households well.
The recent ownership changes (Asda was bought by the Issa brothers and TDR Capital in 2021) have led to some turbulence, with reports of reduced stock availability and changes to store layouts. It remains a solid choice for budget-conscious families, but it no longer dominates the "low price" conversation the way it did a decade ago — Lidl and Aldi have eaten into that territory significantly.
Morrisons
If fresh food is your priority, Morrisons deserves a closer look. It is the only one of the big four that still has its own manufacturing and packing facilities, which means the supply chain for fresh meat, fish, and bakery products is shorter and more controlled. Many Morrisons stores feature a "Market Street" section with an in-store butcher, fishmonger, deli counter, and bakery — the kind of thing that used to be standard in every town but has largely disappeared from most supermarket chains.
On price, Morrisons sits somewhere in the middle. It is not the cheapest, but its promotions can be genuinely good, especially on fresh items. The store count is smaller than Tesco or Sainsbury's, so availability depends on where you live. If there is one near you and you care about the quality of your meat and fish, it is worth the visit.
The premium option: Waitrose
Waitrose operates in a different league entirely. Prices are notably higher across the board, but so is the quality of produce, the range of artisan and speciality products, and the in-store experience. If money is not the primary concern and you value sourcing, provenance, and a calmer shopping atmosphere, Waitrose delivers. Their free coffee for myWaitrose members is a small but much-loved perk. For most households watching their budget, though, Waitrose is an occasional treat rather than the weekly shop.
Playing them off against each other
The smartest approach — and the one that saves the most money — is not committing exclusively to any single supermarket. Buy your everyday staples at Lidl or Aldi, where they are cheapest. Pick up specific branded items or premium products at Tesco or Sainsbury's when they come up on promotion. Visit Morrisons when you want properly good fresh meat or fish. This "multi-store" strategy sounds like more effort than it is, especially if you use CatalogFlix to browse all the current leaflets in one place before you head out. You can compare offers across every major retailer in a couple of minutes and plan your route accordingly.
The Money Saving Expert supermarket comparison is another useful resource — they regularly run price checks across chains on identical baskets of goods. Between that data and the weekly leaflets on CatalogFlix, you have everything you need to make sure your money goes as far as possible, whichever combination of stores you end up using.