Its not an issue of any particular ab exercise. Here's a picture of who you cited as wanting to look like. Check out her arms... that's intense.
Its a combination of good genes, nutrition, and full body workouts.
Edit: Don't just think about calories, think about nutrients. 1300-1700 will only make you skinny, not defined... that's not enough energy into you to look like what you desire... muscles burn a lot of energy daily.
Re-Edit: I hired a personal trainer 4 weeks ago to get into better shape and lose some fat. He asked me to keep a log of what I was eating.... I sent him a 3 day log... he said, problem 1 was eating too little, problem 2, wrong ratios of carbs/protein/fat.... since then I also hired a nutritionist who agreed... I've been eating about a 1/3 more than I was and am dropping pounds every week while feeling full and adding muscle. In my case I had way too much processed sugar in my diet, but I'm a full believer that a low calorie diet is not the way to go.
