I wasn't very clear was I!

On the LHR-MAD and LHR-BCN routes, the BA planes seem old and tired. As they're frequently busy, the staff always seem in something of a bad mood. Last Sunday in particular!
Conversely, if you speak Spanish with the IB staff they're always helpful and the planes seem to be cleaner and newer.

Regional IB is great and reminds me of flying before service was "enhanced" to what we see today.

I am on a bit of downer with BA right now as i'm still missing luggage after four days with no arrival time in sight, so feel free to ignore me.

The best advice i can give if flying to Spain and connecting to a regional flight is stick with only Iberia operated flights as you cannot OLCI, and so cannot reserve seats.