The best uninstaller is Bulk Crap Uninstaller, it just won in all categories, wiping out all competition.
- It (one of the only which can do this one) removes software by bulk!
- Removes traces of the installed software from any place
- Is open source
- Runs some of the uninstallers silently
The only downside to this one is that the UI is a little crappy and outdated, and the wizards are a little bulky, but once you get used to it, you won’t look anywhere else!