Revo Uninstaller Free
Fast and very effective at uninstalling just about anything. Popular choice for the purpose.
IObit Uninstaller
New kid on the block. Gaining popularity. Boasts a bunch of features not found on other uninstallers.
Absolute Uninstaller
Less popular than the other two but probably the simplest to use one.
Advanced Uninstaller PRO
It might say “PRO” in the title but this uninstaller is completely free and already Windows 8 friendly.
GeekUninstaller
Tested by MakeUseOf to be one of the most effective uninstallers out there.