KL is a wide area, so when you omit which area in KL that is near you, then the suggestions will be general.

I hear NSK is competitive in fresh grocery but there are no NSK or Econsave near me. You can compare prices between Giant and Tesco, althought I believe Tesco would be more competitive because they use central distribution which means their fresh produce is not as fresh as Giant.

Just a word of caution, minced meat is not better than actual meat but they can be cheaper, which is not good because health is vital.