Which Continuous Integeration System is Most Popular?
Recently I've been looking into moving from Continuum to Hudson. Hudson sounds like a more complete solution to me and seems more popular. However, both solutions seem to share a similar feature set, including distributed builds. Maybe I'm swayed towards Hudson because of their mobile client and IDE integration.
I'd be interested to see what CI solution you are using (or would use if you had the chance), and how that system works for you.