I remember JohnXXIII as a very holy man, but very humble and down to earth and close to the people. His predecessor (I think it was pope Pius XII), seemed more distant and restrained, as did pope Paul VI. Even though he was old, the youth identified with him in much the same way they related to JPII.
Though one ruled for barely 3 years and the other for nearly 30, I don’t think I could favor one over the other. They were equally beloved.
Personally, I agree that either “they were equally beloved,” or no comparison should be made at all. It seems to me that to say that a pope is the “most beloved of all time” is a valid opinion/feeling. However, to get into some form of ranking of who was the most beloved, just doesn’t feel right.
Those who have a fondness for John XXIII, Pius X, etc. are welcome to their feelings as well.