After using NIS 2010 and reading articles and watching videos on ESET Smart Security, I would have to say Norton Internet Security 2010 is better.
Operating System- Windows 7 Home Premium 32 bit
Browser- Google Chrome, Firefox
Real time protection -NIS 2011 188.8.131.52 Aggressive Heuristics and SONAR
On-demand- Malwarebytes, SuperAntiSpyware