Courteney Cox with hubby David Arquette

Courteney Cox and David Arquette have been voted the celebrity couple most likely to succeed.The pair - who have been married for eight years and have a three-year-old daughter, Coco, together - received a staggering 59 per cent of the vote in's Pop Culture Survey Summer 2007. Latino stars Jennifer Lopez and her husband Marc Anthony, who married in 2004, finished in second place with 16 per cent. Nick Lachey and his TV presenter girlfriend Vanessa Minnillo took the third spot with nine per cent of the vote, while married couple Tom Cruise and Katie Holmes received eight per cent to secure fourth place. Heather Locklear and her former 'Melrose Place' co-star Jack Wagner - who started dating in February - scored just five per cent. Cameron Diaz and magician Criss Angel, who were only briefly romantically linked last month, got three per cent. Despite the ringing endorsement of their love, Courteney and 35-year-old David's marriage has not been without its problems.Last year, the 43-year-old actress admitted she had called in a relationship counsellor to help her save her marriage during a particularly rocky patch. Meanwhile, the couple said goodbye to their Malibu home - which is currently up for sale for $33.5 million - by inviting their celebrity friends over for Sunday brunch last weekend. The gathering included Courteney's former 'Friends' co-star Jennifer Aniston, George Clooney, comic actor Sacha Baron Cohen and his pregnant fiancée Isla Fisher.