这句话里面,应该用is还是are?

问题描述:

这句话里面,应该用is还是are?
The most important to me is your distinguished faculty and the mutual research interests and goals between us.
The most important to me are your distinguished faculty and the mutual research interests and goals between us.

应该是is,因为谓语动词的单复数与句子主语保持一致