Got the same Jetta vs Civic decision back in December. #1 priority, safety, because I have kids.

I chose the Jetta because it has side and curtain airbags.

Other safety features:

Jetta (all variants)
  1. Electronic Stabilisation Program (ESP) with Anti Slip Regulation (ASR)
  2. Electronic Differential Lock (EDL) with XDS
  3. Engine Drag Torque Control (MSR)
  4. Anti-lock Brake System (ABS) with Brake Assistant
  5. Hill start assist



Civic 1.8E
  1. Vehicle Stability Assist (VSA)
  2. Auto Brake Holds
  3. Anti-Lock Braking System (ABS)