::UPDATED:: 4/17/14
The best post-infection removal success rate can be had by using a Rescue CD / USB. Here are three that are free:
Bitdefender RescueCD
Kaspersky Rescue Disc 10
Avast! 2014
note: Avast! requires a full installation on an unaffected machine to download and create the ISO file. Bitdefender and Kaspersky will let you download ISO files directly to burn to disc or create a bootable USB drive. In addition, Bitdefender comes with Team Viewer for Linux pre-installed to allow easy remote desktop sharing for support.
Business Protection
The best real time protection for your business is the one that gives you a complete overview of your company network health, this is what the experts call business automation. I have found these two products to be the best in terms of features and confidently recommend Webroot Secure Anywhere for their great support. Bitdefender does get the highest marks in online A/V tests. However, I have found their tech support completely underwhelming, often taking days to respond to phone calls.
Webroot Secure Anywhere Endpoint Protection for Business
Bitdefender Cloud