this question gets asked hundreds of times a week,
There is no best style.
They will all work as long as you train right and have a good instructor.
Your size, body type and sex have nothing to do with the style you want to choose. People that think that your size and body type determine the style know little to nothing about martial arts
Most people will tell you there style is the best or they heard such and such is a great style,
The style is not important, what matters is how good your instructor is and how you train. The style is secondary, they all have there pro's and con's there are no superior styles.
If you have an instructor that can’t teach you how to fight, regardless of the style, what good would it do you?
Choose a school with a good instructor in the end that’s all that matters, that and how you train.
Its the person that has the ability to fight not the style