Our Style Superstar usually highlights the week's best and worst dressed, but we're making an exception this time around. You see, both "Harry Potter" starlet Emma Watson and singer Rihanna caught our attention in striking outfits, and we simply couldn't decide whose we liked best. So instead of devoting space to a worst dressed, we're making the case for each actress' outfit and asking you to tell us who deserves the top spot!

Emma was the epitome of chic at the London premiere of "Harry Potter and the Deathly Hallows: Part 1" wearing a black Rafael Lopez dress, which featured a see-through lace top and feathered bottom. The dress was definitely a risk, but the young actress (she's only 20!) pulled it off with ease and grace. We loved her style so much that we scoured the web to find out how to get a similar look for less. Oh, and how could we not mention the pixie 'do? It was seriously cute.
If there's anyone who knows a thing or two about taking a fashion risk, it's Rihanna. RiRi arrived at the 2010 Europe Music Awards in a totally glamorous off-white Marchesa gown that simply floored us. In fact, we loved it so much that we declared her the EMAs best dressed lady. But does she deserve to be the week's best dressed as well?
This is where you come in, Crushers. Take a close look at both starlets and let us know in the comments section who gets your vote as this week's Style Superstar!

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