I use both on my one remaining windows machine. Both tools wipe additional data that the other misses. Bleachbit gets more logs and old installers. CrapCleaner gets more registry cruft. BCWipe clears file slacks and does a better job with swap / pagefiles and old volume shadow copy snapshots.

Certainly use older versions of CrapCleaner, prior to them getting malicious code installed. I don't have links to that incident, but you can find it.