I always think Reese Witherspoon looks nice. Same with Gwyneth Paltrow. Jessica Alba & SJP too. I used to really like the way Natalie Portman dressed, but she's made a few very bad choices this year.
Definitely Victoria Beckham! (Abandoned Images): Victoria is white but obviously spends lots of time and money tanning. Nicole Richie and Jessica Simpson are a close second.