Some writing falls under a fair few categories here, such as discworld: Comedy (without a doubt), Fiction in general (Don't dare tell me you believe Ankh-Mopork exists

), Fantasy (magic, even though no uses it properly, exists in Discworld) and Medieval Fantasy (although, to be honest, it doesn't really depict the medieval setting all that well (but maybe that is due to me keeling over in pain and laughter every few moments

).
My vote goes to Medival Fantasy!
Please, if I have missed out something, vote 'Other' and specify what exactly