^ I agree. I think comparisons are only valid when the looks are identical. I think it's really unfair when she's constantly being compared to Kate, even though they're wearing everything differently.
Oh, and a side note: I think it's really funny when Sienna wears something even a teensy bit like something Kate wore earlier or even just similar to Kate's style and EVERYONE jumps down her throat (see earlier this thread for proof). But here's something that Kate's wearing post-Sienna and no one says a thing. Honestly, it's like the latter can do absolutely no wrong, but everyone's ready to rip on Sienna at the first sign of any (perceived) imitation.