I voted for Rosalie and Emmett, because for me they're really the hottest couple in the Cullen Clan.. I like Alice and Jasper too, but knowing Alice; I think Jasper was struggling for words when Alice told him "You've kept me waiting long enough.." I was laughing when I read these lines.. They're totally cute..
Rosalie and Emmett because, Emmett's the only one who can tolerate Rosalie's hostility towards Bella..
And when Emmett was mocking Bella about her sex life.. I grinned when Emmett told her "Did Edward tell you how many houses Rose and I smashed?" It was so naughty and at the same time sexy.. I hope Nikki and Kellan will be a real couple..