What premium items have you bought that you're the most happy with?

I don't have too many premium items yet but I am probably most happy with Rex Banner. I love the look of the nighthawk diner and his "Interrogate Flanders" task always makes me giggle. I also am really happy with the Drive In. I know for a fact that if I didn't get it before the event ended that I would have regretted it for a long time.

I know have some donuts to blow and am debating on getting the Duff Factory, Frink, or Disco Stu. Too many choices!