It would have been easy to award this honor to T-Mobile's ( trash-talking CEO John Legere again. He is the Twitter gift that keeps on giving. )
But Elon Musk is no slouch either. Musk is a fun follow on Twitter.
He gives frequent updates about the latest at Tesla ( as well as SpaceX. )
The budding rivalry between him and fellow rocket man Jeff Bezos, who owns SpaceX rival Blue Origin, is starting to get interesting.
Musk also uses Twitter to recruit -- he wrote in November that Tesla was looking for "hardcore software engineers" that he would interview personally.
And of course, Musk is skilled at using Twitter in the art of self-defense.
After Consumer Reports took away its recommendation for the Model S in October due to reliability issues, Musk tweeted that the magazine was looking at earlier models and that newer ones already addressed the problems.
He cheekily added that "97% of owners expect their next car to be a Tesla (the acid test)." The source for that data? Consumer Reports.