Mr. Khaled, would you be inclined to do network-specific channel favorites? Ie, include a network drop-down, and one for All Networks (excludes network-specific entries). And a selector (ini section) for Defaults vs User-Defined.
If you're willing to put in the feature, I'll be willing to put in the work for identifying subjectively worthy channels with neutral objectivity and solicit the channel owners for permission for inclusion.
I recommend moving this from mirc.ini to favorites.ini
You might also move the [chanhist] here if so inclined.