Hi, I am really keen on learning a Martial Art/Fighting style; need help choosing one!?

[James]

I really want to learn an art that will give Self Defense and knowledge on how to look after myself. I am not that tall and therefore NOT extremely strong. I have been looking/researching closely and have been suggested Aikido. It looks quite good and wouldn't mind trying it out. Krav Maga has also been appealing but i just have no idea! Please help and comment! Thanks