Vista - PCcillin vs Avast

Now that the compatability issues have been resolved, Avast is my choice of
AV software. Trend was really affecting my IE performance, let alone the
overall performance of my build 5728. even if I never have liked the avast
"VCR" skin, I've been using it for a long time. I've tested most of the AV
software out there for xp, and they all suck in some way or another. The
best protection I've seen so far is the UAC. Alot of people have complained
about the inconvenience, but I'vr blocked a few unwanted controls from
loading from a web page that otherwise would have installed silently. the
recent pdf backdoors, activeX and vml vulnerabilities demonstrate how this
is done. So, show me a suite that's been infallable, and I'll kiss your
shiny metal computer case.