We compare clients all the time. It would be cool if there was a quick way to mask the data allowing us to compare without sharing specific information. Something like a check box where we turn on/off the masking feature. When turned on, select the axis that contains the client name. Then select the name(s) you want to remain and auto change the remaining names to something generic like brand 1, brand 2, etc.
Changes both at the legend and hover text level.
Example: If you are managing Coke, Pepsi, Dr. Pepper and RC Cola we could turn on the mask feature and then see Coke, Brand 1, Brand 2 and Brand 3 so the comparisons are meaningful but allow you to not share specific competitor information.