Hotspot carrier poll

Simply wanting to take a poll of opinions among OTR drivers to see which "hotspot" Carrier has the best service in all 48!

I.E. Sprint, AT&T, and so forth. I know about the paid Flying J/Pilot thing, not the most secure though. Using an actual cell tower carrier based hotspot would be best.

Some of the newer tools, like Overdryve Pro use hotspots or WIFI to update and get info like traffic and weather maps, etc., which is very handy supplemental info on the road. Wifi will mostly be only local at some stop, a hotspot would be active over most roadways in motion.