(S04E01) Right now, Sarah Chalke plays two different doctors on two different series. And, as I ponder the mediocre fourth-season opener of How I Met Your Mother, I find it remarkable that Mother's Dr. Stella Zinman is the polar opposite of Scrubs' Dr. Elliot Reid. Elliot can be manic; Stella is always calm. Elliot is completely insecure (though less so now than earlier); Stella is rock-solid sure of herself. Elliot lets life happen to her; Stella takes action.

But who would I want to date? Elliot. Why? Easy; Elliot's interesting; Stella's boring. And therein lies a huge problem.