On an absolute level, yes, I agree - Jesus and Muhammed cannot be compared. Lots of Scripture can be quoted about how God is different from humans. But, Jesus in His earthly ministry, fulfilled 2 of the 3 offices presented in Scripture. The 3 offices are prophet, priest and king.
Jesus was a prophet, predicting the future using short term predictions to validate his long term prophetic statements. Mt. 24
Jesus was a priest "according to the order of Melchizedek" Gen 14:8, Ps. 110:4, Heb 5:6, 10, 6:20, 7:1,10-11,15,17
Jesus will return as King Rev 1:5