I am considering two different scenarios for outbound travel to LHR in business class next summer. One is MIA-LHR on BA with a 3 hour layover (and higher fees), while the other connects to an AA flight but with only one hour 25 minutes for connection. In either case, my inbound flight to MIA would be on an American Eagle. I am not familiar with MIA, but I am a bit concerned that the AA Eagle to AA connection might be too short. What would you advise given this choice?