I have to get a new phone and plan (losing company phone). I've been on AT&T since day one, but I have the chance to start with a new carrier, and I am wondering if things have changed in the last few years. I have heard that T-Mobile is the best iPhone carrier right now. I need to be able to use the internet at the same time as the phone, so I think Verizon and Sprint are out? I'm in the non-coast western US, if that matters.