I've used both SourceSafe and PVCS and can't really recommend either of them. I currently use SourceGear Vault at home and can recommend it. At work, we use Telelogic, or as I prefer to call it, Tel-Illogic. It's worse than PVCS and SourceSafe.

>I can't recommend it with much authority becuase it and Source-Save are the only two I've ever used. I don't know much about others.