Zeiss 18mm and 21mm ZF review and comparison

Let us face the fact that people like comparing. Here is an interesting review with comparison of the Distagon ZF 18/3.5 and 21/2.8 offered by Jorge Torralba. Their sizes differ by quite a bit, focal length differ by 3mm, and speed by less than a stop. While both of the lenses are spectacular, I find that the 18/3.5 has a slightly stronger lateral CA. What do you think? Find it out yourself at Zeiss Images.

Link: http://www.zeissimages.com/showreplies.php?qid=837