Avant isn't new... its been around for the past 2 years now
Firefox > AvantBrowser.  ...Of course, this is my own opinion.
But remember, Opera's been doing ALL of that for the past 3
years.  There aren't any real advantages of Avant over
Firefox... Firefox actually conforms to W3C Spec, and that's all
I ever need. Avant is insecure by virtue of using the Trident
engine (okay... its more secure now than it *was*, but still
isn't as secure as Firefox, either by design or obscurity)
Consider that first.