I can feel another experimiment coming on!

Even though we're on the very edge of the city, we're still only 10 minutes away from Morries, Sainburys, Aldi, Lidl, Tesco and Asda. Morries wins my vote every time - it feels comfortable there!
Sains, Asda & Tesco are too big and the Tesco is alongside the student campus.  The students have bargain shopping down to a fine art - there must be Degrees they take and this is research. Aldi and Lidl are almost identical, sell the same stuff and are almost on opposite sides of the road to each other.

You've got it made Veggie!