Personally I don't really care for the Company A versus Company B frame, or the Region A versus Region B frame.  However, I was <i>quite</i> interested in the discussion of how a feature which sounds great to an engineer can have negative consequences for your conversion rates versus something which is quicker to implement/less sophisticated/flies-in-face-of-received-wisdom/whatever.<p>Other examples: "breaking navigation" during conversion funnels, long copy, 10 Ways To Write A Title Cosmo Editors Don't Want You To Know About, etc etc.