Re: Poll: Does aikido contain any physical principles not present in any other budo?
I think that the physical principals are present in other martial arts. In most MA, they don't get into those principals until later on in their training - almost like "hidden teachings". We get them right off the bat!
Now as far as the spiritual application of the art - this what funadamentally makes aikido different from aikijujitsu. Aikido is basically O'Sensei taking a brutal martial art and applying his spiritual beliefs to the art - making it so vastly different from aikijujitsu that is merited a new system.
Physical fundamentals - NO. Spiritual fundamentals - YES.