Going through some of the past threads, I've noticed that a lot of the discussions have dealt with Aikido in comparison to other arts, often MMA. Usually, this is done to express what Aikido doesn't have. For a change of pace, I'd like to know what everyone thinks Aikido has that other arts don't, or what they found in Aikido that they didn't find in other arts (or that wasn't as prevalent).
To start the ball rolling, I'll give my two cents. What I find unique in Aikido is that it's philosophy of non-violence (which should not be confused with being passive), is backed up by the actual techniques practiced. I honestly can't think of another martial art in which this quality is so pervasive, nor where the ethical/philosophical side is so intrinsic to an arts study.
"Seek not to follow in the footsteps of the men of old; seek what they sought."