BCS championship game scenarios

[pwnsall]

I know some people hate when a team that didn't win it's conference plays in the mnc. Hypothetically if Illinois beat Iowa should OSU not be allowed to play or is a tie good enough? Illinois would have gotten the BCS at large bid in this case.

In this case about the opposite thing happened to Georgia where the team they needed to lose didn't so they are somehow worse? I never really got the argument.