The Daily Mail also did a comparison of Kate & Chelsea--a bit unfair to Kate, in my opinion, but made some good points:
"One is a tall, leggy brunette with a reputation for being (dare one say it) rather dull, the other a curvaceous beach-bleached blonde who likes nothing more than to party until dawn. But the differences between on-off girlfriends Kate Middleton and Chelsy Davy do not end there. For while it is middle-class Kate who has come to love the trappings that her royal romance brings her, it is bubbly Chelsy who, surprisingly, has crumbled under the weight of public scrutiny. On the surface it is a surprising reaction from a girl who posed for her own modelling portfolio at the age of 17, confiding in the photographer that she "just wanted to be famous". But as Chelsy has learned to her cost, sometimes you really do have to be careful what you wish for - and from the moment that news of her relationship with Harry broke, she has struggled to come to terms with her loss of privacy. Despite complaining about press attention, Kate is a regular face at royal haunts such as Boujis and Mahiki, with an ever-present smile for the paparazzi. Chelsy, on the other hand, is always ready with a scowl. Kate is also not averse to using her relationship with William to her advantage - securing herself a cut-price Audi, similar to that of her boyfriend, at a specially negotiated price given only to royalty or celebrities. On her arrival in England Chelsy chose to buy a small VW Polo. And unlike Kate, who made such a stir when she arrived at Sandhurst for William's passing-out parade, Chelsy chose not to attend Harry's graduation as she feared it would detract from his achievement. "