Now that the fourth-quarter earnings season is coming to a close, FierceWireless, in partnership with Jackdaw Research, is taking a look at how the top wireless operators performed in terms of key metrics like churn and ARPU. Jackdaw Research analyst Jan Dawson has assembled slides that break out how Verizon Wireless (NYSE: VZ), AT&T Mobility (NYSE: T), Sprint (NYSE: S) and T-Mobile US (NYSE:TMUS) performed in the fourth quarter. Read the report here.