Best virus, spyware protection.

IMO, you don't necessarily get better protection from paid security software vs free. As some of the top rated paid malware security apps mentioned here have had instance(s) of being hacked. Which can be dangerous as security software require elevated privileges to run, and can allow hackers admin rights to install and run malware if compromised.

You're better off having a layered approach to security, and keep your OS, browsers, and apps on your system updated with the latest security patches. Anti-virus/malware software is just one piece, and should not be your only protection.