Lol, let's get the facts straight:
AT&T's LTE Coverage:
http://www.att.com/network/ (35 markets, > 75 million Americans)
Verizon's LTE Coverage:
http://network4g.verizonwireless.com/ (230 markets, > 200 million Americans)
And I only live/travel to major cities, thus I don't need to worry about fall back to 3G. Even still, my friend has a Verizon 3G iPhone and it's fine for download speeds. A little bit slower on benchmarks? Sure. Noticeable for real world daily use and browsing? Nah.
And if you think AT&T is going to catch up, get a reality check. Verizon won't sit idly by and let AT&T just surpass them. Someday in a few years maybe AT&T will have the same LTE coverage as Verizon, but given they failed to match Verizon's 3G coverage, I wouldn't hold my breath.
So as I said before, more LTE coverage, better customer service, better call reliability, and depending on the market (though since Verizon has more), faster LTE speeds.
So please, remind me again how AT&T has any advantage thus far in the LTE arena?
I'm a Verizon 4G LTE mifi customer, and I live in a major city... and I still LOL at this. Where I live, Verizon markets 4G LTE coverage in our area, but it is still spotty, and constantly switiches from LTE to 3G... and to say 3G download speeds are fine... hehe... It's fine most of the time, but it's slow... and at times... unusable. I'm still a happy Verizon customer.... but I don't claim that Verizon is the best thing ever. To be honest, I would rather have a LTE mifi device that switches HSPA+ speeds than Verizon's 3G, but I'll continue to stick with Verizon for my mifi device. It's nice having both AT&T and Verizon data plans so I have more options depending on my location. I don't claim AT&T is great either... but I'm satisfied as a AT&T customer also...
AT&T hate much?