During His lifetime, Jesus said the two most important commandments were to first "love the Lord God with all your heart, soul and mind and secondly to "love your neighbor as yourself"( Matthew 22:36-39). After his death and resurrection, he added another priority, to "go and make disciples of all the earth." (Matthew 28:19)
This is an excellent question. I spent two year trying to answer the question. My answers were published by Upper Room Books in October 2007 in "The Jesus Priorities: 8 Essential Habits." I based my answers on analysis of what Jesus said and did the most during his public ministry.
You can see the table contents and read sample pages at amazon.
Peace, and good look in your search.