http://www.totalfilm.com/features/7-tacky-horrors-that-deserved-oscars I actually agree with most on the list.

The Academy used to respect horror films, to a degree.
In 1931, they at least let Fredric March’s Dr Jekyll And Mr Hyde turn tie with Wallace Beery’s The Champ for Best Actor.
These days, Daniel Day Lewis’ Jason Vorhees could bear down on Oscar holding a bloody machete and a bunch of flowers and the golden bugger wouldn’t so much as glance in his general direction.
But what if things were different? What if the Academy had always held horror flicks to its sentimental old heart? We reckon past winners would suddenly look a lot like this.