From the first graph, you will see the ATT and VZ speeds are fairly consistent, T-Mo and Sprint seem to be all over the place.

Again, what are the real numbers? If you were to use the second graphs numbers as speeds, with Sprint at 100 to mean maybe 10mb/s, then ATT isn't that far behind with about 7.5mb. If you are viewing a video, that difference probably won't be noticed.

I like consistency.

@Alan: You're right, Nielsen doesn't care about the consumer. They live because of their past reputation for TV ratings. That is how most people even know about them.