I recently converted from a sprint 5s to a verizon note 3, and I ordered the verizon iphone 6 plus which will be replacing my note when it arrives.
I switched to Verizon because I was tired of waiting on sprint's non existant LTE network and fed up with bad call quality as well as dropped calls.
With the verizn note 3, call quality has gotten much much better. I can hear everyone fine now and I even have to lower my volume because keeping at max is too loud, whereas with the sprint 5s even at max volume I had a hard time hearing people over the phone.
People need to allow others to have their choice of opinion. one size does not fit all when it comes to phones