Weighing in all late...
Balanced Bolt for the win!
I like that I can roll with a PDW/Shotty as a mid-range primary, my Rex as a close-range primary, and the Xbow with BA for long-range cleanup. I feel like the Balanced Bolt has less drop over distance than bullets from any of the sniper rifles. Plus, it's more rage inducing to pwn a bush-wookie with the Xbow.