The strongest arguments I know for Perforce are scaling and performance. Perforce has simply been used for larger projects, on larger servers, by larger compan

The strongest arguments I know for Perforce are scaling and performance. Perforce has simply been used for larger projects, on larger servers, by larger companies than just about anything else in existence. It's also presumably good for companies that, like subversion, it's centralized. But it doesn't have any terribly significant feature improvements over svn, otherwise. The interface is slightly slicker, and the merge works marginally better.