What are the differences and similarities between anakin and darth vader?

Anakin, was a compassionate and confused young Jedi, unsure of his place in this universe. Vader, was a evil, careless, Sith who lusted for power.

Answer here is a physical description of both of them:

Anakin Skywalker was tall and had a scar on the left (his right) side of his face. His right arm is cybernetic and he is overall a handsome guy. Hayden Christensen plays Anakin in Attack of the Clones, Revenge of the Sith, and as a force ghost in both Return of the Jedi, and Rise of Skywalker. In the Clone Wars series he is played by Matt Lanter.

Darth Vader is a cyborg that wears black armor and a helmet, (both of which act as life support) and a black cape. In his armor, Vader stands at 6ft. 7in., which is 6 inches taller than Akakin Skywalker. On his chest and on his belt there are control panels that operate the vital life support supplied by his armor. All for of his limbs are cybernetic.