The best replacement for svn is git.

The best alternatives to svn are rated as following:
★★★★★  git
★★★★  cvs
★★★  mercurial
★★★  accurev
★★  tfs
★★  perforce
★★  vss
★★  github
★★  clearcase
★  subversion
★  mdi
★  git commands
  sourcesafe
  git branching
  maven
  git usage
  csv
  git merging
  pvcs
  source safe
  bazaar
  git speed
  bzr
  visualsvn

Your alternative for svn is not listed? Suggest!
Speaking about svn, one probably shouldn't forget about eclipse.

Other search terms related to svn and their ratings are:
★★★★★ eclipse
★★★ xcode
★★★ visual studio
★★ git
★ unity
★ github
★ xcode 5
ant
bugzilla
dreamweaver
You have in mind a companion for svn and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of svn in all years. Click on graph for more.
svn
git
cvs