I would say Raiders, But a lot of fans bounced on them when they switched from Oakland to La, back To Oakland again, thats just messin with ur fans, gotta go with the NINERS, most fans of the Niners I know liked them way before they started being the dominant and prolific team they are today, im talkin about before Joe Montana when they were weak, every team has some front runners though, everyone hated the Rams till they had that fluke and went to the Super Bowl, 9ers