Paris.
In Homer's epic, The Iliad, these are: Hera, Aphrodite, and Athena.
I assume you mean in the Trojan war. Athena and Hera were angry because Paris had given the golden apple to Aphrodite and neither of them. This meant that Aphrodite was the most beautiful goddess.
1. Aphrodite 2. Hera, Artemis, or Athena
Paris was best known for choosing Aphrodite as the most beautiful (out of Aphrodite, Hera, and Athena). He received the love of Helen as a reward, though this basically started the Trojan war.
Aphrodite is known in Greek mythology as the Goddess of Love. Aphrodite became famous for her contest with Hera and Athena for the title of the most beautiful Goddess.
Athena and Hera were jealous of Aphrodite because in a contest of beauty, Paris chose her and in return, the most beautiful women on Earth, Helen
"To the fairest" was given to Aphrodite by Paris, for judging that she was even more beautiful/fair than Hera or Athena.
Hera offered him political power and control of all Asia. Athena offered him wisdom, skill in battle, and the knowledge of the best warrior tactics. Aphrodite offered him the most beautiful in the world.
She bribed him with the promise of the most beautiful maiden on Earth, if he chose Aphrodite as the fairest of all goddesses (out of Athena, Aphrodite, and Hera). I ♥ Greek Mythology... :D
Athena didn't like the Trojans because of a contest between her, Aphrodite, and Hera. Paris, a prince of Troy, had to pick the most beautiful out of the three goddesses and he picked Aphrodite. This caused Athena to hold a grudge against the Trojans.
She was a big impact in the Trojan war. Aphrodite, Athena, and Hera all offered Paris something Athena offered him victory in battles Hera offered Power and Aphrodite offered the most beautiful mortal in the world Helen off course he chose Aphrodites offer and there began the war
There was a beauty contest between Athena, Hera, and Aphrodite. Aphrodite won and promised the prince of Troy, Paris, that she would make Helen, the most beautiful woman in the world, as his wife.