- better .tar.gz handling: Winrar treats it as one file, 7zip as a tar in a gz that have to be extracted separately
- recovery records to be able to recover from mild bit rot
- support for more NTFS attributes and features (saving alternate streams, security records, turning hard links into links, etc)
- can do useful things with the archive attribute of files if you so desire (archiving only files with the attribute set, clearing the attribute after, optionally deleting them)
- better GUI (7zip UI is an incomplete WinRAR clone)
- when selecting multiple archives, you can extract each to their own subfolder with a single command
Overall WinRAR is the much more solid archival tool. If all you need is something to decompress archives WinRAR isn't too different from 7zip, but has a slightly nicer UX.
- recovery records to be able to recover from mild bit rot
- support for more NTFS attributes and features (saving alternate streams, security records, turning hard links into links, etc)
- can do useful things with the archive attribute of files if you so desire (archiving only files with the attribute set, clearing the attribute after, optionally deleting them)
- better GUI (7zip UI is an incomplete WinRAR clone)
- when selecting multiple archives, you can extract each to their own subfolder with a single command
Overall WinRAR is the much more solid archival tool. If all you need is something to decompress archives WinRAR isn't too different from 7zip, but has a slightly nicer UX.