I would say Asa because they say it is cheaper. I had a Morrisons next to me that just shut down and Tesco's is so much more expensive. You used to get a lot of buy one get one from at Morrisons. I have an Aldi and a Lidl next to where I work and popped in for a look and if you can put up with some non branded items i.e tinned tomatoes, tinned corn, chilli beans, you can save a fortune. Just take your own bags.