These antennas can be compared on 20 and 40m. On 20m both antennas are half wave length. On 40m the Fan is half wave dipole, where the End Fed is extended and effectively a quarter wave, so about -3dB less gain.
Both antennas are about 10m above the ground at there feed point. Sloping down to about 5m above ground. Radiation direction is approximately North - South.