The NFL.
Robert PArish played 21 seasons, longest in the NBA.
BenJarvus Green-Ellis has the longest streak of carries to start an NFL career without a fumble (589).
Mlb
Probably Brett Favre who is in his 19th or 20th year in the nfl and who now plays for the minnestota vikings
NBA- Kobe Bryant NFL- Jason Hanson if you exclude Matt Stover because he went from the Browns to the Ravens MLB- Chipper Jones
53 for NFL and 15 for NBA
Frank Gore holds the record for the longest career as a running back in the NFL, having played 16 seasons with various teams from 2005 to 2020.
LA Lakers' small forward Ron Artest recently said after his basketball career he will go to the NFL. Check in the link below to watch his interview.
NBA and nfl are both awsome because you are in profensonal leage
NFL and NBA are official brands in themselves, however there are retailers who sell these products on behalf of the NFL and NBA.
Yes the NFL began in 1920 and the NBA began in 1946