Ino rocked this war. But Sakura did as well. I'm not going to choose because neither can do the others job as well as them.
Ino helped take down gin/kin, fought with asuma, stopped the juubi for a bit, basically was the medium for the mass communicating with the SA and anything else i might have missed you can fill in cuz im literally calling this stuff off my head.
Sakura was initially with the mid-long range fighter division so we know she did some fighting there then transferred to medic division.
She discovered something critical and relayed the information which helped the SA big time as she found out the secret of white zetsu and its transformation, shes been healing the wounded all of that time.
She on the battlefield assisted other shinobi by powering their attacks like darui, she healed up kakashi and healed naruto when he was drained. She achieved her byakugou seal and proceeded to destroy a chunk of the juubi clone army and then used katsuya to heal the SA via regeneration and then she assisted in saving shikamaru's life and when tsunade came she helped heal the SA in a new way that was a katsuya floor mat basically.
She then was able to assist Naruto by keeping his body working while he was technically dead which paved they way to his revival that is taking place at the moment.
Ino and Sakura were shining in two totally different aspects. These female of the k11 are MVP I can't say ones job was more important than the other.