I would say save your money and avoid either one of those options and just use Maxlife since it's an overall excellent ATF, Aisin transmissions aren't picky, and any T-IV or WS analog is inherently nothing special.
Aisin is part of the Toyota group, while they do operate independently and sell to many other OEM's Toyota is not just one of their many customers. Aisin's relationship is certain much closer to Toyota than to Volvo or VW. Jatco is a similar story, founded by Nissan now sells to many OEM's (is the world's largest supplier of CVT's) while operating desperately from Nissan who own's 75% of Jatco.