Asda, however, has closed the gap between them and stands less than one percentage point behind as opposed to five before. As last week, just two percentage points separates Sainsbury, at number three, and Safeway, at number five.
Heinz remains at the top of the brand chart while all else changes. Four brands move up this week, including Nestlé, Kellogg's, Walkers and Princes.
Nestlé is active in both confectionery, including offers on Easter eggs and KitKats, and cereals with a number of price promotions and extra-fill offers.
Persil and Irn Bru both come in as new entries, at numbers seven and eight respectively. Persil features a number of multibuy offers while Irn Bru is focusing on price promotions.
In the category chart the top three remain the same, with soft drinks at number one closely followed by alcoholic drinks and culinary. Soft drinks is dominated by multibuy promotions, including a number of buy one get one free offers, and it makes good use of both gondola ends and floor stacks throughout.
Confectionery moves up the chart to number four and is supported by activity on Cadbury, Mars and Nestlé.
It's all change in the own label category chart with frozen leaping up the chart from number four to take the top spot. Frozen now stands eight percentage points ahead of household at number two.
Cakes and biscuits comes in as a new entry at number five while alcoholic drinks moves up one place to number four.