Reddit user u/medialover00 ran a poll asking the "Family Guy" community to decide which character they believe is the biggest scumbag of them all. Roughly 7,200 people cast their vote, and the result was astounding. Stewie Griffin (MacFarlane) earned 172, Lois Griffin (Alex Borstein) had 253, Mort Goldman secured 557 (John G. Brennan), and Peter Griffin nabbed 952 (MacFarlane). We then see a huge jump from Glenn Quagmire (MacFarlane) and Brian Griffin (MacFarlane), who walked away with around 2,400 and 2,900, respectively. Thus, according to the people, the Griffin family dog is the scummiest "Family Guy" character.
Throughout his "Family Guy" tenure, Brian has done and said genuinely awful things to those close and unfamiliar to him — oftentimes for his own benefit. Evidently, this has caused many fans of the show to dislike him, which is interesting considering the strong response to his unexpected death in Season 12's "Life of Brian." Not long after the episode aired and television viewers witnessed him die after being struck by a car, folks around the world called for the powers that be to bring him back. It eventually happened, but not after nearly 130,000 strong petitioned on Change.org to see the iconic animated dog resurrected.
Brian Griffin isn't the most moral or selfless person and is considered by many to be quite the scumbag, but it's clear that he has his fans all the same. No matter how you look at it, "Family Guy" wouldn't be the same without him.