All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
It is forbidden to say that a given person from the generations that came after the Companions of the Prophet is better than them because Allaah The Almighty was pleased with them and they were pleased with Him. The Prophet declared that some of them will go to Paradise, such as the four Rightly-Guided Caliphs. Thus, saying that there is any person among the people who came after the Companions who is better or worthier than them is a misconception and a form of plain deviation. In fact, any person who says so has to repent to Allaah The Almighty for such a heinous statement.
Allaah Knows best.