Hello Bulent,
Since zip tools can be used in very different scenarios, the answer depends very much on how the product is going to be used. For example, Rocket's Zip cannot read/write data sets directly, whereas PKZIP appears to have such a feature. One can circumvent this by copying data sets to USS first, if the overhead of copying data is acceptable. On the other hand, Rocket's Zip fully supports file tagging in USS filesystem, but I'm not sure if PKZIP does.
Regards,
Vladimir