So the hottest Best Girl ever in the history of non-H fiction is... 14? 
Y'know what?  I don't care.  I'd go to jail for that.  Tohka is totally worth it. 
@AnimeAintReal : Why would you even say that?  The mother is just a generic busty random nudeface with a mediocre hairstyle. The only notable thing about her is her figure...  and frankly I prefer Tohka's. I mean c'mon... if she has the same bra-size as her mother at age 14, you know she is only going to get better. Plus having a bit of squish in the stomach is a good thing. And as for everything else... Tohka's overwhelming victory in all regards.
@Strenux : Nope.  
GLASSES, Tits and Arse...  The first one is the most important. Don't even pretend otherwise.
@Zhou : Fine.  Take worst-girl. Best Girl is too good for your kind anyway.