I love bangs of all types on women. But for women with round face shapes, I think side-swept is your best bet, but blunt bangs such as those pictured here would also work for you. Just make sure the bangs sweep the brows.
See more long hairstyles for women with naturally straight hair
See 10 More Flattering Haircuts for Round Face Shapes
Missed the first gallery of round face shapes?
Gallery 1: Flattering Haircuts for Round Face Shapes