helen89/iStock Editorial via Getty Images Introduction Let me start this article by showing you the 1-year performances of the nation's biggest telecom service stocks.   Company 1Y Performance (Ex. Dividends)   T-Mobile US (NASDAQ:TMUS) 15.6%   Comcast Corp. (CMCSA) 16.8%   Verizon Communications (VZ) 5.0%   AT&T (T) -9.0%   Charter Communications (CHTR) -19.1%    T-Mobile US, the star of this article, hasn't just performed really well over the past 12 months but outperformed all of its peers by a HUGE  ...