I have at least 20 super markets within a 12ish min drive and 8 of those are within a 5 min drive
they include the big 4, waitrose, Lidl and aldi
i think it depends what you buy
we have a brand new aldi down the road.... i was amazed by the selection and quality (and PRICE) of their fresh fruit and veg!
a whole punnet of delicouse sweet and juicy nectarines for 69p for example
im very close (almost net door) to a huge asda and i dont really get much from there at all and i do find several of their staff very rude, and have got a fair few formal warnings for being so extreamly rude
I think unless you by all value / smart price etc lidl / aldi would be cheeper, but i dont like any of their meet and wouldnt by anything with any meat / chicken ingrediants from there full stop
I also have 2 waitroses within a 5 min drive and imo they are NOT more expensive, and if you bought a trolley of branded goods, ie heinz beans, fairy liquid, kelloggs corn flakes etc etc i think you would find the cost exactly the same as on all most branded good they price match the spermakets.
on their own brands you DO pay a little more but when you look at the ingrediants lables you see why.... no manky EU pork in waitrose ham etc
you pay a bit more because you are buying better quality food more ethically sourced (which IMo is worth paying for_
Last time i went shopping i went to aldi for fresh fruit and veg, olive oil, and fruit juice and waitrose for the rest!