With the exception of a few Asian grannies that I know who wear those cute apron smocks, I've only seen two basic styles of aprons: bib and half (or cafe) apron. In a perfect world, I would prefer a bib apron because it protects the front of my blouse when cooking. There's one annoying problem with bib aprons, though: as a woman with (ahem) curves, I often experience a shifting of the apron bib which causes a certain part of my anatomy to pop out on one side. Very embarrassing!
It helps to tie the bib strings up a little higher, thus creating more coverage. But that often makes the waist ties too high as well. When I do wear a bib apron, I look for a style like this one from Utility Canvas which allows me to make the necessary adjustments. Or I simply fold the bib over and wear the apron as a half apron.
What's your apron strategy?