Re: Moriteru Ueshiba v Christian Tissier
Reading this thread I am reminded of something Okamura Sensei once said (I paraphrase)
"Up to 3rd Dan be technically correct, 3rd to 6th Dan develop your own style, after 6th Dan do what you like"
Aikido (like any physical sport) follows certain principles but each player/practitioner develops a style according to their personality and physical make-up (Think of Federer vs Nadal, Woods vs McIlroy etc. etc)
In this context better or worse becomes not only irrelevant but meaningless.