What do boys think of abs on girls?

I am really active and i do a ton of sports. I am a competitive diver and because of my training I have become rather toned and i have prominent abs...Like not washbord abs that you see some guys have but obvious. What are guys opinions on abs on girls? do you find it gross and unattractive?Do you prefer just flat stomach ,or flat with a little chub or lightly toned??????