Which one should I buy? Preview Bumblebee, people say, has a horrible problem with his cannon arm popping off, while cannon Bumblebee has a horrible chest problem. I have a movie Cliffjumper, Love him! Should I try to buy a '07 BB online since I love the mold so much, or should I get Cannon BB or preview BB? I need to know which mold is best over all. I don't want any nitpicking or anything, just which one is the best?