Does cost factor in? Was on Symantec for a couple of years, then I went looking for a free suite. Tried to pick one that was secure, performant, and easy to use based on reviews online. Some of the names that frequently came up among the top were:
1. Kapersky Internet Security
2. Norton Internet Security
3. Comodo Internet Security
4. Zone Alarm
As usual, couldn't find one that seemed to top most if not all reviews.
I ultimately settled for Comodo (not entirely sure why I did, but after using it, the one feature I like is the community feedback, which basically tells you the percentage of users who allowed a program flagged as malicious by Comodo vs those who blocked it). But like the review at http://www.pcmag.com/article2/0,2817,2333448,00.asp mentions, Comodo does seem to flag a lot of valid programs.