A poll will serve no purpose as a) there currently is no avast firewall b) Alwil I believe have already said it will be available as a suite for those that would prefer a suite.
Those that want a stand alone AV would still be able to use avast, so my logic would be so to would the avast firewall. But this is so early days that speculation is worth little as we don't know if the firewall will have a free version, if suite will be a paid option or also free for home use.
It really is a waste of time to speculate, Alwil will be the ones making the decisions and when the time comes, we on the forums are likely to be the first to find out.