I would like to ask you to add 1 font to the addon if it's possible. i've tried to do so myself with changing the code and such but with no success :(
I accomplished what you want by altering the clearfont fontpack addon instead of the clearfont addon itself. To do this, change the references to Clearfont2_Fontpack to some other name such as Clearfont_FontpackU as well as the folder name for your new addon. Then add your font to the font directory in the fontpack folder and add it to the lists in the core.lua to make it look like the others in there. You can remove any of the fonts you don't want. Since the addon has a new name, it will not update using WAU and anytime Clearfont2 is updated, you get the improvements without having to add your fonts in each time.
I like comic style fonts too. The one I choose to use is called Gosmick Sans: http://www.dafont.com/gosmick-sans.font. It looks great in game.