While sister Catherine is busy taking in the Canadian sights, Pippa Middleton has been taking in the tennis matches at Wimbledon. Pippa's gained a reputation for her styled appearances since the royal wedding, and her visit to Wimbledon is no exception. She hit the tournament first, in a summery red sheath — and boyfriend Alex Loudon at her side — then headed back, dressed in a sexier, black knit dress. Both serve as perfect examples of why the world is loving her accessible-chic style, but we want to know which is your favorite. Which Wimbledon look is most Fab?