Republic Wireless
Data buckets, unlimited talk + text, AT&T 4G & roaming on Verizon
Currently living in an area with poor reception, but that will change soon. In the mean time, I'm on the $5 per month plan with (unlimited) WiFi talk and text, since paying for the cell towers is near pointless. After moving, I'm planning to move to the data refund plan, where you can buy buckets, and any unused data at the end of the month is refunded to your account. It's $10 + $7.50 for each 500MB, but I'm usually well under 500MB since I'm around WiFI 90% of the time, and have music on a flash drive in my car, so it's effectively a $12-13 plan with the option of using as much data as I need.