The difference isn't that great, though I personally prefer to shop at Lidl/Rewe. Locally there is an ALDI, Lidl, Rewe and EDEKA within a 5 minute drive, by exp

The difference isn't that great, though I personally prefer to shop at Lidl/Rewe. Locally there is an ALDI, Lidl, Rewe and EDEKA within a 5 minute drive, by experience, ALDI is the cheapest of them but I usually prefer shopping at Lidl since they provide more higher quality stuff (ALDI doesn't always stock actual parmesan, it's very often just generic grated hard cheese). ALDI offers everything but only one of everything, Lidl has more a bit more variety. 99.9% of my Saturday grocery run can be satisfied from any of them however, so there isn't much reason to prefer any of them over the other in my area, other than EDEKA, the prices are mostly the same.