2 bcs championships
LSU has won 2 bsc national championships
Florida and LSU have the most BCS Championships
Florida and LSU have each won two BCS championships. No one else has won more than one.
LSU and Florida have 2 BCS National Championships, but Alabama has 3 BCS National Championships. (BCS era started in 1998) Alabama also has the most all time National Championships with 15.
If you're meaning the current BCS system (post 1997) it's a tie between Florida and LSU, both at 2 wins.Florida and LSU have both won 2 BCS National Championship Games
Alabama, Florida and LSU have each won two BCS championships. No one else has won more than 1 title during the BCS era. If Alabama wins this year, they will have the most with 3
The Alabama Crimson Tide have won 13 BCS National Championships.
Oklahoma won 1 BCS National Title (2000).
I think its three.