Err, guys there's no big mystery about Market Capitalisation you know, it's ctually quite simple, so for those with slow brains, it is the share price multiplied by the number of shares issued. It's not a subjective financial statement but simple financial fact, so if FR's Mkt Cap is bigger then BA's, then it's bigger then BA's! There's nothing dishonest or "dodgy" about it!
Some of you should rally get out more, your obsession with Ryanair is comical.