You have to look at all the tests to come up with an average not just one, and the last time I checked it Kaspersky overall was not number 1...
Call me paranoid, but at this present day and age, I don't trust using something out of Russia, especially for the fact that Mr. Kaspersky has ties to the KGB...
They all have their Pros & Cons, the free versions of Avast & Avira are as good as anything else out there, if not better...