Kaspersky vs Norton vs McAfee vs Avast vs Spyware Doctor vs.....

which one?

I seem to have run them all except for the Kaspersky.

In the process of trying to get cleaned up from an attack and have purchased Kaspersky

Just wondering what others think is the best of all of them

Independent comparatives of Anti-virus Software
click on the "Comparatives" link on the left
TopTen Review: AntiVirus Software Product Comparisons
AntiVirus Software Comparisons for 2009
Virus Bulletin <- requires registration

These types of comparative testing results will vary depending on who is doing the testing, what they are testing for, what versions of anti-virus software is being tested, etc. There are no universally predefined set of standards/criteria for testing and each test will yield different results. Thus, you need to look for detailed information about how the tests were conducted, the procedures used, and data results. Read Anti-virus Testing Websites: An overview of testing sites

Choosing an anti-virus is a matter of personal preference, your technical ability and experience, features offered, the amount of resources utilized, how it may affect system performance and what will work best for your system. A particular anti-virus that works well for one person may not work as well for another. You may need to experiment and find the one most suitable for your use. There is no universal "one size fits all" solution that works for everyone. Another factor to consider is whether you want to use a paid for product or free alternative.

My personal choice is NOD32 Anti-Virus if choosing a paid for program or avast! Home Edition Anti-virus if choosing a free one.

No single product is 100% foolproof and can prevent, detect and remove all threats at any given time. The security community is in a constant state of change as new infections appear. Each vendor has its own definition of what constitutes malware and scanning your computer using different criteria will yield different results. The fact that each program has its own definition files means that some malware may be picked up by one that could be missed by another. Thus, a multi-layered defense using several anti-spyware products (including an effective firewall) to supplement your anti-virus combined with common sense and safe surfing habits provides the most complete protection.

Makes sense.

Whats the best one in your opinion that will scan over network drives?