Reagan said "Tear down this wall" but I think JP II had much to do with that actually happening.
John the 23rd used to walk down to the vatican workshops, drink wine and shoot the shit with the working people while sitting on a barrel or workbench.
Paul 6th seemed rather regal and aloof.
Pius 12th was political prick. He and Pius 11th took the power of the church away from the bottom where it flowed to the top and moved it to the top where it's dispensed downward at the Popes discretion.