>>4426860
Technically Yuki x Mayu has the yuri dial to maximum, but Wonderful is more het than usual, so their subtext become too soft and thus overshadowed.
I personally think the last, most intense yuri ship was Asuka x Yuriko, like the final few Asuka's episode are just her and Yuriko is just intense healing fic about a broken couple trying to become girlfriends again.
Unfortunately not many people make fanarts about them.