The Royals with the second longest tenure, Billy Butler had a five year run where he was one of, if not the best, hitters on the Royals. From 2008 through 2013, Butler produced a .302/.372/.496 batting line, averaging 40 doubles and 20 home runs a year. Entrenched firmly in the middle of the Royals lineup, Butler was the one hitter the Royals could count on.
Pros: As mentioned above, Butler had been the best hitter on the Royals over the previous five years. An All-Star and the winner of the Silver Slugger award in 2012, Butler has been remarkably consistent at the plate. Even though he struggled for much of this season, his bat has awakened once he went over to first base, helping to fuel the Royals charge to the top of the Central.
Cons: While Billy Butler is the second longest tenured member of the Royals, that may be coming to an end soon. The Royals hold a team option on Butler after this year at $12.5 Million, with a $1 Million buyout. Given the cost for designated hitters on the open market, Butler is unlikely to see that option get picked up. Unless you happen to be George Brett, it would be difficult to be the face of the team having left.
Yet, if the Royals decide to extend Butler, which may be more of a possibility based on how he has performed, he could find himself as the face of the Royals. For now, Butler seems to be a long shot.