@drvarunmehta: Most of them wont go for a resource hug antivirus software. Light on system and also good in detection rates is the people's choice.
Who would install a big resource hug in their Home PC's which consume resources and turn a great configuration PC into a 19th century PC?? Then what is the use of all the money you are putting for that extra CPU speed and extra RAM?Just allow your antivirus software to eat it generously? That is what is happening to Norton. There is no doubt about its detection rates, but still most don't prefer it -just becoz it consumes a hell lot of system resouces. Infact first thing I have done after purchase of my lappie is uninstall it!
Most of us have dont have super computers so as to allow antivirus software to generously to eat a part of system resources and still keep running system fast. It may be good enough for corporate PC's but definetly no for home purpose.
avast! is becoming people's choice. Beautiful interface, light on system and good in detection rates.