Verizon seems to have the best network. I just switched to them to get of of Google's Project Fi phone plan, because fuck Google. Their prices are higher than the super-value MVNOs, but you pay for quality I suppose. They also gave me $750 credit towards a new phone for my phone that had a trade in value of $89, so I was able to get a flagship phone instead of a cheaper one. They seem to get way cheap per line if you have a family plan, and the deals are less good as you get down to just 1 line.