Verizon. In my area its hit and miss between them and AT&T. Where I get poor coverage ATT might be good and vice versa. Admittedly ATT seems to have better speeds but not enough to concern myself over. Typically with a fast ping you won't notice much difference over 5mbps.
Currently now that Verizon offers VoLTE (voice and data simultaneously) and Wifi calling (eliminating dead zones at home or work) I'm much happier. Wifi calling has really saved my ass a couple of times when I'm on a site that has no reception but has good wifi. However in a neighboring county their LTE just out right sucks so driving through or around with VoLTE on results in constant dropped calls which is obnoxious and reminiscent of late 90's cell phone reception...
Currently now that Verizon offers VoLTE (voice and data simultaneously) and Wifi calling (eliminating dead zones at home or work) I'm much happier. Wifi calling has really saved my ass a couple of times when I'm on a site that has no reception but has good wifi. However in a neighboring county their LTE just out right sucks so driving through or around with VoLTE on results in constant dropped calls which is obnoxious and reminiscent of late 90's cell phone reception...