What's the best home blood sugar machine?

The one you like. While almost all the home monitors do a good job of accurate readings, they also offer a variety of other options such as ability to download to a computer to track the results over a period of time.
Lots of good ones. To avoid sounding like a commercial for the companies, please discuss with your physician the types of glucometers used in their practice. A center with diabetes educators would provide you with good recommendations.