The Pats by a country mile.
A-Rod's accomplishments are few and far between. 1 World Series and a perennial choker in the postseason (I'm a born and bred Yankees fan). The home runs are another thing, but that record has already been tarnished by Barry Bonds and Mark McGwire. In fact, A-Rod was playing in the same league that had Brady freaking Anderson getting 52 home runs in a year and making Bret Boone look like the next Mickey Mantle.
The Pats got a clear cut, enormous advantage with SpyGate which lasted up until 2007 and then turned it over to illegally deflating footballs from 2007 to 2015.
I can't stand the Red Sox, but it didn't bother me that Ortiz and Ramirez were eventually copping to taking PED's. I just thought it was more ridiculous that Red Sox fans really believed the Mitchell Report was unbiased and that they really thought that none of the Red Sox were taking PED's. It more bothered me that MLB allowed and enabled for rampant PED use to happen.
YR