Yeah, I doubt I'm going to do it. I just don't think it makes enough sense for my situation. My AT&T coverage isn't bad, other than at my house (and Verizon won't be appreciably better in my house). I already own the AT&T Microcell for the house (and hopefully I'll be able to resell that once they support Wi-Fi calling on the iPhone 6), so if I switched to Verizon that's another $250 I'd have to spend to get Verizon's version of the Microcell.Not worth the switch. I'm on the complete opposite coast but the same fact about a better verizon service rings true here. With that said it's not so much better it's worth switching over to and losing my unlimited plan. From the description of your service it sounds like you are in the same situation.
There's the fact that I've got unlimited data on two of my phones (yes, just 5GB for reals, and then throttled after that, but it's still pretty good). If I switched to AT&T's new Mobile share plan or started up a new plan with Verizon and got their similar plan, I'd be able to do tethering, but I never have a need for that, so I'm not really missing out. Ditto for unlimited voice calls. My 550 minute plan with rollover minutes results in me essentially having unlimited voice calling now.
Plus, with the 2-year commitment approach with 2 of my lines on one year and the 3rd line on an alternate year, it allows me to upgrade my phone every year for the 2-year commitment price and hand a phone down to my wife or daughter. Then, upgrade my phone and one other phone on the alternate year. If I switched to Verizon (or to AT&T's Mobile share plan) I'm pretty sure my math indicates that I'd be paying more overall per month/year.
Another plus with AT&T is that it seems like it's easier for me to get a hold of an unlocked GSM phone to play with, if I ever wanted to do that (e.g., I could buy a Google Nexus 5 for $350 if I ever wanted to try out Android).