Well with Aikido, there is not increased aggression.

You will become more martial, but not more aggressive.

I've found that in any fight I've been in...

You get into a lot of fights?

It seems I'm in the right martial art then. Out of the countless Aikidoka I have encountered, I've rarely met anyone who has had to use their training at all, or if so maybe once, and certainly never had to hit anyone to protect themselves.

Maybe because part of Aikido (well, our Aikido school anyways), is to have a strong, but peace-oriented mindset.