This is Tommy all day and all night.....Both were simular in the way that they liked to be the agressor...Both had questionable chins at times but here is the difference.

Tommy was faster.
He was stronger
The reach would be a big advantage over Tito's hook
The #1 factor would be heart.

When Hearns lost it was usually due to a KO that left him cold or just about.

Tito when ever things got rough seemed to fall apart. He became a whipping boy for Hopkins getting up reluctantly....When he lost to Winky you could see his heart was taken from him...Onece his ability to be the dominate fighter was gone so was Titos game plane...Tommy though he like to be the agressor he could box if he had to...EG Leonard 1....so he had more then one dimension....Also the early rounds....Tommy started too fast....It took tito a while to get warmed up...IMO tooo much Hearns too fast. Tito is taken out of his game plan early and his heart is taken by the 5th...Unless he catchs hearns with a KO punch that comes from left field.