You have many options that are faster than Bluetooth...
Any wired network options will be your fastest choice. These avoid the overhead of Wi-Fi communication and provide faster transfer rates. Cabling the two machines together directly or through a switch is your best bet.
Wi-Fi wouldn't be a bad second choice, since (I would assume) both laptops support it. If you don't have any extra network cables lying around, this would be my second choice. LAN transfer rates of typical SOHO Wi-Fi routers aren't half bad.
If you have an external hard drive available, this would do the job as well. Keep in mind you have to bear the delay twice -- once for transferring to the device and once for transferring from it.
All of these options are much more practical and faster than Bluetooth.