T-mobile has the same plan 60 for unlimited talk text and 3gb data BUT the kickers are that streaming music apps like spotify,pandora, google music dont' count against your data cap so you can stream music all you want basically and not run out of data. ALSO they have Data stash where if you don't use your all your data for that month it gets rolled over to the next month and so on and so on. The data can be stashed for a year unlike ATT where it only lasts for the following month, BUT of course price doesn't matter if you don't get signal so definitely go with the company that has the better coverage in your area.
I thought that this was great news, then I checked and realized that I'm already getting 15GB shared between my wife and I for $100 a month. Plus extra an 1GB for free. I forgot that a couple of months ago I got a text alert from Verizon saying that I was nearing my data limit, and it said for $0 I could move up from 10 to 15gb. So of course I did it. Not sure if that was a glitch, but it looks like I'm winning.