[WanderingWarrior]

Interesting to see a couple ppl say they did TKD and no Shotokan, or vice versa. Tae Kwon Do was originally taught to the Koreans by masters of Shotokan, however they only studied up to Shodan (1st degree black belt)
Somehow they were able to rank themselves all the way through the dan degrees of black belt. If you look at the stances and some kata of TKD you will see a resemblance to Shotokan although TKD focused much more on the sport aspect. Not for nothing, TKD practitioners who compete at high levels have some very fast and powerful techniques. Its all about what you want to dedicate your training to.
The 'jutsu' arts are considered to be closer to the heart of Bujutsu, art of the warrior or warrior techniques, than the 'do' arts which generally speaking are more focused on sport.
Aikido/Aikijutsu, Judo, Brazilian Jujutsu are all derivatives from Japanese Jujutsu. With many different schools of jujutsu, and branches from well known styles it can be hard to keep track of them!
I am a former TKD practitioner that converted to Isshin Ryu (traditional Okinawan Karate) [Sandan], Okinawan Kobujutsu (Traditional Weapons) [Nidan] and Nihon Ryu Jujutsu (Fancy for Japanese Jujutsu) [Nidan] And I love them all as they provide the three points of the mitsu tomoe in my martial arts training!