If going local ask for their uptime percentages, they should be in the 99% range if you're planning on hosting business related pages. This is the amount of time the network is accessible, it should not be down for more than 1% of the time.

These days it's getting easier to get a decent quality hosted account, I don't think you'll go wrong if you purchase from any of the domain providers you listed above or with a reputable local service provider.