How to Pick a Carrier for the Next iPhone

With the recent news of the Supreme Court suspending AT&T's acquisition of T-Mobile, and with the delay of the 5th generation iPhone, now would be the best time for most consumers to manage which carrier they want to join with, since there's bound to be a slew of price wars between the big four (not basketball, though the season is fast approaching), and the competition will be fierce. How to Pick a Carrier for the Next iPhone