Rigid/DR Summicron vs Type IV Summicron vs other Planar type lenses

[NazgulKing]

Hi all. Could I have a comparison between the Type II and Type IV Summicrons and other planar lenses such as the ZM Planar in terms of

1. Resolution
2. Tonality and Constrast
3. Rendering

?

Thinking of procuring one (or more even further down the road) sometime in the near future and trying to decide something good to start with.

I'm told the DR Summicron is the Summicron with the highest resolution? Are there comparable ones?

 

[artspraken]

http://www.l-camera-forum.com/leica-forum/leica-m9-forum/152408-zeiss-35-f2-8-m9.html

lower down in this thread got discussion on comparison btw summicron and planar.