a3e-tech

                                                                            VS

Two of the biggest players in anti virus market are avg and kaspersky both have their pros and cons. AVG is better in heuristics, it uses less memory and performs fast. Kaspersky is better in detection, it is slower since it scans thoroughly and better. Most people use AVG, being a freeware. but if you're on quality and not on expenses go for KAV. Some viruses can be detected and removed by AVG and not by KAV and vice versa.Kapersky is the best anti-virus program on the market today according to several extensive tests carried out by many different people and im sure if you searched for it you would find test results somewhere on the internet. Kapersky is not free however but it is cheap in comparison to other suites such as mcafee and norton. Kapersky also offer a complete solution pack which includes firewall, antivirus and spyware protection and i have heard it being highly reccomended on a few message boards and discussion 

AVG is free thats a good thing about it. The detection rate is not as high as Kapersky but you would not expect it to be because it is free. AVG also has a very basic look and feel about it.Kaspersky is a very good anti-virus soft, while AVG concern more about spyware. 

Sometimes they work against the same enemy, but sometimes spyware are not defined as a virus and a virus are not doing the same thing as a spyware.