Blue Cross HMO or Cigna PPO? Which is a better choice for family of 4?

It depends on what your family's needs are and how much you want to pay monthly. (At my company the HMO premiums are considerably higher than the PPO premiums.) If you will have insurance primarily for check ups and in case of an emergency the HMO would probably be better. If anyone in your family has a specific condition where you know you will be needing to see specialists and stuff, go for the PPO. Getting referrals to see specialists in a HMO is a pain.