I'm looking into buying a better lens for my 35mm camera and I have stumbled upon these two lenses. Judging by the performance data supplied by the manufacturer, which is the better lens? Explanation of the diagrams you can find here; I cannot make much sense of them myself. Please leave your choice and explanation in the comments section.
At the moment I have the lens with the characteristics below; would any of the lenses above be better? I'm not too happy with my current lens now as it has problems with vignetting and distorts otherwise.