I think Amsoil is - not only because of the superior base stock, superior organic additives, and great additive package - it has been proven in many applications to protect, last and shift great.
My vote is for the Pennzoil MV-ATF....
It has an amazing -40c viscosity........., very close to Amsoil's.......,
I have been using it in my 02 RAV4 for almost a year now....., shifts are seamless....