I nominate @ausbitbank
He is a witness and very supportive of minnows. He supports the #minnnowsupportproject and encouraging new Australian users through #teamaustralia. He has also delegated SP to new comers to assist their growth and actively comments and votes on fantastic content.
He also develops projects to further develop this platform. One of them is steemviz.com

He welcomed me to this community and encouraged my growth. Cheers