This is a list of which quotes I like better for the unit, from SC1 or SC2.
Marine - SC2.
Firebat - SC2.
Goliath - SC1.
Vulture - SC1.
Wraith - SC2.
Battlecruiser - SC2.
Science Vessel - SC1.
Ghost - SC1.
Medic - SC2.
Siege Tank - SC1.
All in all, I have mixed feelings about the unit quotations in SC2.