Verizon vs AT&T service

Ok so the new iphone is coming out in Sept, I'm currently off contract with AT&T and can leave anytime. I've been with AT&T for 5yrs (am gran-fathered in the unlimited data) Im annoyed that I get throttled back every month (I average 4gb/mo) and now only get 1bar in my new condo. I do drop a few calls/mo but who knows if I would with Verizon in these same areas.

They just released their new data shared plans as did Verizon last month. I'll be paying more In my case than I do currently and the same amount no matter which company I choose. Its a pretty close wash since it doesnt matter all my family is on Verizon bc its all unlimited calling under these new plans.

Just wondering if I should go back to Verizon or not?? If I went with Verizon I guess I can combine the bill with my fios and get a $10 credit but not sure if its worth hassle.

***I do NOT want this to be a phone debate, I DONT care about your ice cream sundae etc!

I normally change phones every yr but after getting my iphone4 on day 1 & having it unlocked, I never found the need to upgrade to the 4s.