3. Megan Fox (Transformers)
As with Tea Leoni and Scarlet Johansson, Megan Fox was a fine choice for an appealing leading lady, causing everyone from hormonal teenage boys to their dads to simply sit agape, watching Fox command the screen. The classic scene that always comes up is when Mikaela tries to fix a car and drapes her own body provocatively over the hood of the car. Bay's camera, meanwhile, assumes what can only be described as "perv-o-vision", systemically leering at every curve of her body. The result is nevertheless a hilariously gratuitous - and freaking hot - way to provide viewers with a nice break in the action (though it won't calm them down much...) Fanboys the world over wept a single tear when Fox - after a falling out with Bay, in which she called him a "Nazi" - was dismissed from the third film and replaced with a still-attractive if more gormless-looking Rosie Huntington-Whiteley.