I live within 2 miles of Aldi, Lidl, Tesco, Morrisons, Iceland. Asda and Sainsburys are 6 miles away. I have used Morrisons more over lockdown due to NHS discounts / free delivery but pre covid always shopped around, mainly shopping at Lidl and Aldi for the basics and Tesco or Morrisons for things I couldn't get there.
I do a Morrisons online shop every week for an elderly relative and have noticed a lot of prices going up, this week I went to Aldi and stocked up on lots of basic items, I spent £49.01. Out of curiosity I just entered the same items into Morrions and every item except one was more expensive (the Morrisons savers butter was 3p less than Aldi butter).
The cost in Morrisons was £69.61, I expected it to be more expensive but not £20.60.........everything I bought was basic everyday stuff apart from a pot of fresh basil 47p in Aldi £1.25 in Morrisons). I was so shocked I then compared to Tesco which was £58.22........many of the items were price matched to Aldi and some had clubcard offers. I know many people don't like Aldi / Lidl but both my local stores are excellent with a quick turnover of fruit and veg so I will be sticking to them! Obviously, it depends on what your shopping baskets contain, but it seems that for me Aldi is definitely cheaper