Having played both F4 and BS in the last couple of hours I can say that while BS lacks dynamic ground AI, the designers seem to have done an excellent job of giving the illusion that the ground forces are trying to outsmart you.
The campaign in BS is dramatic, through and through - especially those streams of rockets coming at your ground troops you are supposed to be protecting!
Falcon 4 really does make you feel engaged in a war - its hardly 'gamey' as redtiger said (IMO) , but in F4, as in real life, drama is randomised - you make your own fun in F4.
That said, you can count on an exciting ride with BS.