Right now in Naruto universe, Koharu Utatane and Homura Mitokado are members of Konoha Council.
They joined the council after Hiruzen becomes The Third Hokage. According to naruto Wiki:
When Hiruzen became the Third Hokage, Homura and Koharu became his councillors. With their years of experience and knowledge and their unending effort to make Konohagakure a better place, they eventually gained similar respect and social status as the Hokage himself.
But it is known that before that, they're member of Team Tobirama, that also included Sarutobi Hizuren and Tobirama himself. They fought together during the First Shinobi War. So in this time their power could be compared to Hiruzen?
So, How strong are they now? Have they ever fought again after team Tobirama was dissolved?