wel well. even here we can not avout computer forum flamewar subjects.
I have good experience with Kaspersky.
An independent research site regarding Antimalware software can be found here:
http://www.anti-malware-test.com/
regarding norton: for a long time symantec's products were consistently rate mediocre pr worse. slow performance was an issue for a long time.
The manner in which the software installs made it difficult to remove the package. that led to norton receiving the nickname 'yellow pest'.
However, the newest version really is a big improvement both regarding performance, protection and proper installation.