a. According to John Holtrop the Corbin is one of the best. See his report: http://www.pbase.com/lesterhel/image/26334932/original
b. Forty years of experience from hundreds of owners, families, and crew appears to suggest so.
c. From a seaworthiness perspective a STIX stability index of 40-24 is hard to argue with, see the STIX study here, or more information in the Longform Articles section.