Sanxin supermarket is good.

1. Heze Sanxin Supermarket sells a full range of products, mainly vegetables, fruits, fresh food and daily necessities, while Jiahe Supermarket sells a limited range of products, mainly fruits and vegetables and some snacks.

2. Sanxin Supermarket has complete facilities, and customers who have a restaurant can eat in the supermarket, which provides convenience in life. Jiahe supermarket has no restaurant, so it can't provide customers with convenience.