1. Like his favorite holodeck character, Data did the Sherlock Holmes thing and explained the temporal paradox to a hopelessly confused Picard in "All Good Things" so Picard could close the anomaly... using DATA's very own solution.
2. Data uncovered the Romulan ships that were about to make a Romulan-Klingon alliance a reality, which easily would've overpowered the Federation.
3. As the Borg hovered over Earth, Data planted the command that led to the destruction of the cube, and was the only one able to decipher Picard's 1-word attempt at assistance.
4. Again thwarting the Borg, Data killed his own brother who was about to launch a crusade against the Federation and all organics.
5. AGAIN thwarting the Borg, Data reprogrammed the torpedoes that were about to destroy humanity's 1st warp-capable ship, and also released the vapor that led to the Borg Queen's death.
6. Data destroyed the Romulan-Reman ship that was about to end all life on planet Earth - by sacrificing his own life.
Among the cast of ST heroes, Data could be considered at the top or very near to it, for saving humanity no less than 6 times, sacrificing his own brother, and sacrificing his own life. It's cool that there was a "Captain Picard Day," but there should certainly be a "Data Day," too.
2. Data uncovered the Romulan ships that were about to make a Romulan-Klingon alliance a reality, which easily would've overpowered the Federation.
3. As the Borg hovered over Earth, Data planted the command that led to the destruction of the cube, and was the only one able to decipher Picard's 1-word attempt at assistance.
4. Again thwarting the Borg, Data killed his own brother who was about to launch a crusade against the Federation and all organics.
5. AGAIN thwarting the Borg, Data reprogrammed the torpedoes that were about to destroy humanity's 1st warp-capable ship, and also released the vapor that led to the Borg Queen's death.
6. Data destroyed the Romulan-Reman ship that was about to end all life on planet Earth - by sacrificing his own life.
Among the cast of ST heroes, Data could be considered at the top or very near to it, for saving humanity no less than 6 times, sacrificing his own brother, and sacrificing his own life. It's cool that there was a "Captain Picard Day," but there should certainly be a "Data Day," too.