My favorite would probably be when Jesus calmed the storm. To me, Jesus exercising authority over the wind and the waves recalls my mind to one of my favorite Psalms: Psalm 29 that speaks of God as the Lord of the thunderstorm. Jesus's display of power over the storm speaks to his divine nature and awesome power. And I just love how he tells his disciples to not be afraid. Jesus is not only immensely powerful but incredibly compassionate!
His ability to resurrect the dead shows that he has been given authority over death... thats a compelling reason to stick with Jesus....and as he said:
‘I am the resurrection and the life. He that exercises faith in me, even though he dies, will come to life; and everyone that is living and exercises faith in me will never die at all.’”—JOHN 11:25, 26.
Hmm... I do like the Transfiguration, where Jesus reveals His Divinity on Mount Tabor in the form of the Uncreated Light that illumines the world and our hearts, and then the cloud comes, pointing us to the mystery of coming to know God...