Even if i am a Bitdefender fan, i also like Norton 360, been using it for the last 5 months, never had a problem regarding the software itself, a few viruses blocked/ quarantined, never been infected, i like the settings of Norton, a while ago i had a file downloaded from a shady website, the other major AV's did detect the file as malicious, Norton didn't, i manually added the file to quarantine, and from quarantine options i sent the file back to Norton for analysis, less than 24 hr later, Norton was detecting the file as malicious. Manually can't add files to quarantine with Bitdefender or Kaspersky, unfortunately. You can't go wrong with any of them, both a light on the system, both are efficient/strong. Norton has more tweaking options, but not to make you confused, its all crystal clear. As far as the price, if you search on google i'm sure you will find license for any of them for around 20$-25$ 1 year 1/3 PC's.