I run Mcafee. I know jack shit about this stuff but I don't have any complaints.
Actually all of this software discussion leads to one simple thing:
The best software is the one that adapt perfectly to YOUR needs.
To many, photoshop is the best, but its hard to use, in the other hand, google's picassa will let you do the same than ps, with just one "im gonna have luck" button.
If mcafee works for you, then thats one you must use.