A beautiful new kitchen countertop can really stand out. But with so many different types to choose from, how do you know which is best? Consumer Reports tested 14 different countertop materials to find out. Consumer Reports says if you decide to go with granite or quartz, be aware these natural stone surfaces can vary widely, even within the same slab. For that reason it's best to go to a stone yard and pick out the sample you want and reserve it.