Q and A Panel: Calvin, Newton and Luther

If you could resurrect three saints of old to hold a conference, who would you choose?  Of course, we would choose Jesus, Moses and Paul.  However, who would you pick from church history? What is one sermon topic or text you want each of them to address? What question would you pose to each for the Q and A panel?  Is there a topic you wish they would clarify?   

Romans 5:6-11

Romans 5:6-11
6 For while we were still helpless, at the right time Christ died for the ungodly. 7 For one will hardly die for a righteous man; though perhaps for the good man someone would dare even to die. 8 But God demonstrates His own love toward us, in that while we were yet sinners, Christ died for us. 9 Much more then, having now been justified by His blood, we shall be saved from the wrath of God through Him. 10 For if while we were enemies we were reconciled to God through the death of His Son, much more, having been reconciled, we shall be saved by His life. 11 And not only this, but we also exult in God through our Lord Jesus Christ, through whom we have now received the reconciliation.