From an IT standpoint, almost every anti-virus software is the same, each has pros and cons, but they all do the same thing. Their pricing is probably the biggest difference.
There is no real rhyme or reason to choose one over another. Look at their features and choose the one that best suits your needs.
A good positive about Kaspersky is that they do a lot of testing and research on their own for the benefit of everyone, where as many anti virus companies keep all their secrets locked up.