Vodaphone Mobile phones are currently fairly outdated. While they used to provide some of the top service in the country they are no longer relevant in the mobile phone business.
It looks like the vodafone would have good coverage. It would also depend on the service provider that you used to have the service go through as to where the towers are and what the actual coverage...
Boost mobile phones and AT&T mobile phones are very similar. In fact, some of the phones are identical. While Boost definitely is cheaper for service, I can't say that their phones are any better.
yes the vodafone mobile phone has coverage all over the place and Chicago is one of the better places because it has a good connections for most of this carriers phones.