The Lear 31 will be best in the air & on the runway. Runway performance like a CJ, but it will go fast. Also the Lear has 731's and 9 out of 10 are on (MSP) an engine program. The BJ has Pratts and 8 out of 10 are not on an engine program. BJ's have also had dual flame-outs.
The downside, for the Lear, will be loading luggage from the front to the area behind the rear seat. If it's a big bag it want fit between the seats. It must go over, or between the seat backs and headliner, all the way back and over the rear seat.