Again, you missed the point, you are looking at DATA. Sprint is in last almost every time with Data. No argument there.
Root Metrics shows Sprint 4th place with call quality, which I will argue is not the case. Verizon is by far the worst, which interestingly enough shows 1st place. I have had every carrier, ATT and Sprint have the best call quality with my experiences.
So we should just ignore what a third party says and believe you? I didn't realize you were a reputable third party testing company, like RootMetrics.
My bad. I'll learn to ignore statistics and facts from now on just because someone thinks they're wrong.