If you live\work\travel in good AT&T areas, they're 1000x better. The technology is better, the network deployment is better in most areas, and the functionality of the phone is as Apple intended. To take a smartphone with all the bells and whistles and not be able to be on a call and send off a text (or iMessage), or check directions, or do anything requiring internet, is plain primitive.
I would sooner go T-Mobile and live on EDGE before I'd go Verizon, because at least then the crippled phone would be saving me money. Verizon has done a fantastic job in marketing the last 10 years. They've got people convinced that their network is better. Don't get me wrong, in some places (particularly more rural, non-densly populated areas) it can be better, but that's where they have focused their effort. In a way it's smart because they know they're never going to beat a CDMA carrier, so they have to focus their efforts on the tier 2 markets. Look at their LTE map and you'll see what I mean. How do you think they can say "we have 20x more LTE than AT&T" ... because they light up cities like Boise, Bozeman, Billings, which require 1/20th of the manpower and resources to do. That's where their loyalists come in.
If you live in a top 200 city, AT&T has always and will always be your best network option for a fully functioning phone. All carriers have dead spots, so it comes down to where you live\work\play, and each has to make their own decision. I would not personally go with VZW though, as that no simultaneous voice and data would be going back into the stone age.
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Sorry, for those of us with iPhones, "text" is now a commonly used word for "iMessage" ... on Verizon you cannot do that. Nothing that uses data while on the phone.
This is really the correct answer. The plan costs are very similar these days. It's about "what is the coverage like in your area". Period.
In our area we have excellent at&t LTE & HSPA+. If you live in an area where at&t has great LTE coverage for your 5, IMO, at&t has a more refined product. If not, then you have Verizon.
LTE is nice, but be prepared, it sucks your battery. Running LTE all the time you will be lucky to get 50% of Apple's claimed Battery Stats.
On my 5 I only turn LTE on when downloading, or watching a video clip.
So that's my 2 cents. Pick your provider based on how well they cover the area you travel most. Otherwise they are both the same. They want to squeeze as much $ out of you as they possible can.
