I've used just about all of the above (and a couple that weren't mentioned, like Apple's MPW Projector, and Voodoo).

Git knocks them all into a cocked hat. Linus changed the world (again).

The one thing that I would like to see in Git, is true support for fractional repos (setting up a "window" into a Git repo that only includes a subset of files). SourceSafe (another one that wasn't as bad as the comment mentioned) had one neat trick: You could create "aggregate" views, encompassing files from different repos.