At the time of this writing, your one and only post had 45 views and no responses. So, like me, most readers think this is just a rant. If you seriously want a solution to your problem, more information is needed. Where are you getting such poor service? How many bars does your phone show? Are you seeing LTE, 4G, or some slower data speed? Most likely, it's the specific area you are in where your coverage isn't that great.
If Verizon works for you and AT&T doesn't, perhaps you've answered your own question.