The Bowl Championship Series (BCS) was a selection system designed, through polls and computer statistics, to determine a No. 1 and No. 2 ranked team in the NCAA Division I Football Bowl Subdivision (FBS). After the final polls, the two top teams were chosen to play in the BCS National Championship Game which determined the BCS national champion team, but not the champion team for independent voting systems (most notably the AP Poll). This format was intended to be "bowl-centered" rather than a traditional playoff system, since numerous FBS Conferences have expressed their unwillingness to participate in a play-off system. However, due to the unique and often esoteric nature of the BCS format, there had been controversy as to which two teams should play for the national championship and which teams should play in the four other BCS bowl games (Fiesta Bowl, Orange Bowl, Rose Bowl, and Sugar Bowl). In this selection process, the BCS was often criticized for conference favoritism, its inequality of access for teams in non-Automatic Qualifying (non-AQ) Conferences (most likely due to perceived strength of schedule), and perceived monopolistic, "profit-centered" motives. In terms of this last concern, Congress has explored the possibility on more than one occasion of holding hearings to determine the legality of the BCS under the terms of the Sherman Anti-Trust Act, and the United States Justice Department has also periodically announced interest in investigating the BCS for similar reasons.
A survey conducted in 2009 at the Quinnipiac University found that 63% of individuals interested in college football prefer a playoff system to the BCS, while only 26 percent supported the BCS as status quo. Arguments from critics typically center on the validity of BCS national championship pairings and its designated National Champions. Many critics focus strictly on the BCS methodology itself, which employs subjective voting assessments, while others note the ability for undefeated teams to finish seasons without an opportunity to play the national championship game. For example, in the last six seasons of Division I FBS football, there have been more undefeated non-BCS champions than undefeated BCS champions. Other criticisms involve discrepancies in the allocation of monetary resources from BCS games, as well as the determination of non-championship BCS game participants, which need not comply with the BCS rankings themselves. Critics note that other sports and divisions of college football complete seasons without disputed national champions which critics attribute to the use of the playoff format.