Verizon does not pay early termination fees, Verizon has a four line plan for $160 plus tax and fees but you need to pay extra per line for the phone. So it comes out to more money not less.

Verizon charges for data and no longer offers unlimited data. So if you go over you will end up paying much more.

Verizon has better coverage than sprint, and has 4G LTE and better.

But all in all you will save absolutely zero to switch.

Sprint is upgrading the network under something called Spark and Vision so your service may improve. Depends on where you live and travel to. Wall Street Journal states deal is complete for Sprint to purchase T-Mobile, but it will take awhile for Softbank to get approval.

Good Luck