IOS Rev?

What seems to be the most popular IOS rev these days - I'm looking at moving to 11.1.22CA from 11.1.19CC1 - any good arguements for or against it or to any of the other images? -- Jason Weisberger Chief Technology Officer SoftAware, Inc. 310/305-0275 Even in laughter the heart is sorrowful; and the end of that mirth is heaviness. -- Proverbs 14:13