I love Wing Chun. I think out of all the Chinese martial arts it's probably got the most applications an average person could use. I like that it was geared towards the poor to learn self-defense and to train it all you need is a small space and a dummy. Even people out of shape can do it, I believe Sammo Hung trained in it and he's a big dude.
Second love is Mantis Kung Fu, it's just so goofy and it's my favorite animal style.
I didn't do Aikido, but when I did karate as a teenager I went to an Aikido event and learned a little, and it was a lot of fun. The first time I got hit with one of their "neck throws" I felt like a cartoon character.