Tenryu, the ex-sumotori, stated that Shioda was closer to Ueshiba's technique than anyone.
I was thinking about this the other day. For example, if you look at the old footage of Shioda at the start of [this video (0:00 - 0:45)
], and then re-watch the old 1935(?) "Budo" video
of Ueshiba (starts at ~1:05), Shioda's movements are very reminiscent of Ueshiba. In particular, neither of them stays, err, "flat-footed", they they both run around a lot and have a certain "hop" they do when they're going straight into someone.