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The Simpson girls stole the show on the red carpet at the opening of the new Palms Place in Vegas on Saturday.

I LOVE Ashlee's short black number while Jessica's long dress makes her look older than she is, I think.

But seeing the two of them at the same event together, all dolled up got me wondering ... is Ashlee still the cuter one? Or has Jess made a comeback as the top Simpson? I mean ... Ash's hair ... fake ... too red???