"The important thing is this: To be able at any moment to sacrifice what we are for what we might become." Charles Dubois
I'm with Sprint. They went through a really bad patch (really, really bad) but things are changing with their new CEO and I'm really glad I stuck it out. Now when I call for something the person on the other end speaks fluent English and is empowered to help me, and I don't sit on hold for very long.
I wanted to switch to their Simply Everything plan, but I had two lines and needed to drop one to do it (I only used one so it seemed silly to keep the other one). Sprint didn't want me to drop the one b/c it looks bad on their stats, so they made me a deal - they gave me an extra 800 minutes for free, and gave me a $10 credit each month, so that I now have 1600 minutes per month (more than I could ever use) and my total bill for both phones is actually less than the Simply Everything plan. Plus, all my data, texts, mobile-to-mobile, Sprint TV and Blackberry push email is all included. I just stuffed the other phone in a drawer, but I was really glad I still had it with a live number when I lost my primary phone.