Which unlimited data plan sucks the least?. Okay, that is a trick question. The cheapest, but still functional in your area, data plan is best for everyone; not just lawyers. But, now that I have your attention, compare all the unlimited data plans, and pick your poison. I prefer T-Mobile; primarily because they started the unlimited revival, and because they are committed to providing the consumer with the most for least money. In my case, I have added 6 more devices to my plan, have unlimited data, 10 GB of tethering, automobile monitoring, HD video, and all for less money that I was paying Verizon for a metered plan. I have had some complaints from the family that there are some dropouts for T-Mobile in our area; but, I haven't experienced it. The T-Mobile One plan includes taxes and fees in the monthly price; which is $20 per line. Talk on.