What is the biggest feature of Mars among the eight planets?

Mars is one of the eight planets where human beings are most likely to migrate.

2. Mars has the largest number of satellites among terrestrial planets.

Mars is the planet with the lowest surface gravity among the eight planets (tied with Mercury).

Mars is the lowest density planet among terrestrial planets.

5. Mars is the planet whose rotation period is closest to the Earth among the eight planets (1.026 days).

6. Mars is the farthest planet from the sun among the terrestrial planets.