No idea why I didn't answer this (thanks for bumping it up, MEK), but I always loved the little red numbe she wore in Witness to go to the interview.
Also she wore a lot of cute stuff in S1. All those just above the knee skirts - always did think that was a pretty sexy look.
And that blue (? for some reason I always imagine it to be red, but I think when I've checked it out it turns out to be blue) dress she wears in The Rival at the Press ball. Yowsa!
I agree about that shirt scene, MEK - always thought that was desperately cute. And, yes, I think S3 contained her worst dress sense. I wince at quite a lot of what she wore that year.
LabRat
