I sometimes think that Wilf is the Nob Mouse equivalent of the ‘big fat party guy’ stereotype, only not always quite as anchored to the real world.  Okay, he has his moments of annoyance (as can be seen when he argues with Franky during the Pie Noon saga) but he is, in general, quite an easy-going fellow.  He also likes his food, so getting him to decide on his favourite dish can quickly turn into an epic task for him.