Any form of security software is essential to keeping your computer healthy. As far as what you list, here is my 2 cents:
AVG - Decent results, but confusing
BitDefender - Good support and good results
Kaspersky - Great protection, but slow and expensive
McAfee - The Retail suite is horrible; the Corporate AV is good and fast
Trend Micro - Decent, but a bit slow
My business computers run Microsoft Security Essentials and my client's computers run McAfee Corporate on their server and MSE on their workstations.
You pay for quality.