Sorry if we don't allow criticism about specific software brands, but for the science.
Referring to the Compression video with Jeff Roberts and Fabian Giesen (may I include the missing one, Charles!)
Whether a personal preference or real use case, what are their recommendations about popular compressors: 7zip, winrar, winZIP, tar, and so on.
Based on the above, which formats do you prefer when compressing: images, text, a mixture of both?
Sorry if I am breaking the rules, I wrote this at work :S.