We returned the Zeiss to the rental house and went with my set of Lomos. The Producer had insisted on the "name."
Usually, the Zeiss glass is really good and crisp, but the set of Lomos just seemed a little richer in texture than the opposing set.
So, I reiterate that I agree with Evan. It all comes down to personal taste. And, numbers just don't give you that elusive emotive sensation.