I would be very surprised if they chose BOU (Bourges, France)!
Couldn't find any up-to-date passenger figures but in 2001 they handled 811 passengers with a capacity of 1000. One site gives the runway length as 1700m and capable of handling B737 although another site gives it as only 1550m.
As for BOH (Bournemouth) I think it will probably become a base eventually but not for a couple of years yet (would be nice to be wrong and to see a base there now though).
LT