The Worlds Tallest Midget

Am expression that I use quite often is "the worlds tallest midget". I decided to come up with a few variations on that expression that mean the same thing, but use different metaphors, so as not to seem like I am picking on little people. Here is my list, I would like to see my audience add a few

1. The prettiest Jewish feminist.
2 The laziest Asian (actually he is a reader you know who you are).
3 The Sicilian who is quickest to forgive and forget.
4 The most honest Russian businessman.
5 The cleanest bathroom in a kosher pizza store.
6 The most mentally stable day trader (I know who that isn't)

Im sure you guys have some more to add.