Re: What is your art?
Just to clear things up...
Aikido - an art derived from Daito Ryu
Daito Ryu - the creation of Sokaku Takeda, from his experience in a number of weapon arts and the arts of the Takeda Clan (which prrobably included reiho, jujutsu, aikijujutsu, etc.)
BJJ - an art derived derived from 1930's judo
Judo - an art derived from Tenjin Shinyo Ryu jujutsu and Kito Ryu jujutstu.
How exactly are BJJ and aikido similar? You'd have to ask someone who is an expert in both for their opinion.