Dear Rakumar
never heard about similar demand. There might be a small chance that you can solve the topic by using the "stack"; but personally the use of "ruleset" options is better. Then you are sure (by clever design) that you need not compare the content of two properties using WWI and you need only to read the data in one property
Regarding the "Stack" options. Check e.g. Standard WWI processing methods (WWI)
C.B.
PS: if you take a look in document WWI for Experts you will find some referencs regarding the topic "how to print the highest VOC value", This is not "100%" the same; but in the same direction.
In any case: WWI is in my opinion not a good tool to solve the demand. It is better (as mentioned) to maintain the data "right" so that you need no additional logic in WWI. But I have really no real clue about your business need