The number one reason Dr. Horton gives for why he loves Jesus is Jesus' love for him.
The Apostle John writes that "We love because he [God] first loved us." Love comes first from God who is Love and who loved us even when we were sinners and enemies of him. God's love is so great for us that he adopts us into his family and brings us into such a relationship with him that we are able to love him. "See what great love the Father has lavished on us, that we should be called children of God! And that is what we are!" (1 John 3:1) This great love was shown to us by Jesus willingly dying on a cross for the sake of his enemies.
For while we were still weak, at the right time Christ died for the ungodly. For one will scarcely die for a righteous person—though perhaps for a good person one would dare even to die—but God shows his love for us in that while we were still sinners, Christ died for us. (Romans 5:6-8)
Watch the video below for Dr. Horton's full answer.