So do you guys think TMO or Sprint is better for overall coverage and customer service? Pretty much im tired of paying the outrageous AT&T bill and no one at AT&T can tell me why its so high or fix it so im switching over and am trying to avoid buying a new phone because i really like my bold and haven't even had it a year yet, so TMO would be the only option if i still want to use my bold right?

If i sign up for a new 2 year with the bold would i be able to do an upgrade before the 2years or would the bold count as the new signing up discount thing?